JPWO2021130971A1 - Tactile presentation device, tactile presentation knob - Google Patents

Abstract

Regarding the tactile presentation panel, the tactile presentation panel having a conductive member placed on the operation surface and presenting the tactile sensation to the user through the tactile presentation knob is on the tactile presentation panel of the tactile presentation knob. A movement amount calculation circuit that calculates the movement amount of the tactile presentation knob from the current coordinates of the tactile presentation knob and the past coordinates of the tactile presentation knob, and a tactile intensity calculation circuit that calculates the tactile strength given to the user based on the movement amount. And a tactile presentation circuit that sets the voltage signal waveform based on the tactile intensity, and the amount of movement is at least one of the angle of rotation and the rotation speed of the tactile presentation knob.

Description

The present disclosure relates to a tactile presentation panel and a tactile presentation knob that present a tactile sensation to a user via a tactile presentation knob.

A touch panel is widely known as a device that detects and outputs a position indicated by an indicator such as a user's finger or a pen (hereinafter, may be referred to as "touch position") on a touch screen, and has a capacitance. As a touch panel using the method, there is a projected capacitive touch panel (PCAP: Projected Capacitive Touch Panel). The PCAP can detect the touch position even when the user-side surface of the touch screen (hereinafter, may be referred to as "front side surface") is covered with a protective plate such as a glass plate having a thickness of about several mm. Further, it has advantages such as excellent robustness because the protective plate can be arranged on the front side surface of the PCAP, and long life because it does not have a moving part.

The PCAP touch screen includes a detection row direction wiring layer that detects the coordinates of the touch position in the row direction, and a detection column direction wiring layer that detects the coordinates of the touch position in the column direction. In the following description, the detection row direction wiring layer and the detection column direction wiring layer may be collectively referred to as a “detection wiring layer”.

A member on which the detection wiring layer is arranged is called a "touch screen", and a device in which a detection circuit is connected to the touch screen is called a "touch panel". Further, the area where the touch position can be detected on the touch screen is referred to as a "detectable area".

As a detection wiring layer for detecting capacitance (hereinafter, may be simply referred to as "capacitance"), on a first series conductor element formed on a thin dielectric film and on a first series conductor element. It is equipped with a second series of conductor elements formed across an insulating film. There is no electrical contact between the conductor elements, and one of the first series conductor elements and the second series conductor elements overlaps the other in plan view when viewed from the normal direction of the front surface. However, there is no electrical contact between them and they intersect three-dimensionally.

The coordinates of the touch position of the indicator are specified by detecting the capacitance (hereinafter sometimes referred to as "touch capacitance") formed between the indicator and the conductor element which is the detection wiring by the detection circuit. .. Further, the touch position between the conductor elements can be interpolated by the relative value of the detection capacitance of one or more conductor elements.

In recent years, touch panels as operation panels including switches and the like have come to be used in many devices around us in place of mechanical switches. However, unlike a mechanical switch, the touch panel has no unevenness and has a uniform feel, so that the surface shape is not deformed by the operation. Therefore, all operation processes from the position confirmation of the switch to the operation execution and the operation completion must be performed visually, and when the operation is performed in parallel with other work such as the operation of sound while driving a car. There are problems with the certainty of blind operation and the operability of visually impaired people.

For example, in-vehicle devices, since touch panels are widely used from the viewpoint of design, it becomes difficult to operate the in-vehicle devices with blind touch while driving, and from the viewpoint of ensuring safety, operation with blind touch is possible. Attention is increasing to touch panels with functions that make it possible. In consumer appliances, touch panels as operation panels have come to be used in many home appliances and electronic devices. Furthermore, from the viewpoint of design, the number of devices equipped with PCAP whose surface is protected by a cover glass is increasing. However, since the surface of the touch panel is smooth, the position of the switch cannot be confirmed by touch, and it is difficult to support universal design. In the case of PCAP, the glass surface is required to be smooth as a design property, and it is difficult to support universal design such as processing unevenness on the glass surface corresponding to the switch position.

As a countermeasure for the above, there is a method of notifying by voice that the operation has been accepted and that the operation has been completed, but the same function as the mechanical switch, such as the environment where the voice function can be used is limited due to privacy and noise problems. It has not reached versatility. If the touch panel has a function of presenting the position of the switch, acceptance of the operation, and a function of giving feedback to the user by tactile sensation, it is possible to realize the operation by touch typing and universal design support.

Mobile phones and smartphones may be equipped with a tactile feedback function by vibration to supplement the certainty of operation and operability that does not rely on vision. It is expected that the feedback function by vibration linked to the user's operation will rapidly become familiar, and the demand for more advanced tactile feedback will increase.

The methods for generating tactile sensation are roughly classified into three methods: vibration method, ultrasonic method, and electric method. The characteristic of the vibration method is that it can coexist with PCAP and is low cost, but it is not suitable to incorporate the oscillator into the housing so that the entire device vibrates sufficiently, and it is large due to the limit of the output of the oscillator. It cannot be made into an area. The ultrasonic method can generate a tactile sensation such as a slippery feeling that cannot be generated by other methods, but for the same reason as the vibration method, it is not suitable for incorporation into a housing and has a large area. The disadvantage is that it cannot be done. The electric method includes an electrostatic friction method that generates a tactile sensation by electrostatic friction force and an electric stimulation method that directly gives an electric stimulus to a finger, and these can generate a tactile sensation at any place. , Large area and multi-touch support are possible.

Hereinafter, this method will be described. In the following, a member in which tactile electrodes are arranged on a transparent insulating substrate is referred to as a "tactile presentation screen", and a device in which a detection circuit is connected to the tactile presentation screen is referred to as a "tactile presentation panel". The area where tactile presentation is possible on the tactile presentation screen is referred to as "tactile presentation possible area".

Regarding the tactile output device for the rotary knob, for example, in Patent Document 1, a knob corresponding to the rotary knob is attached on the screen of the display device to which the touch panel is attached. The knob can be manually rotated by the user and has a convex portion on the lower surface. When the user rotates the knob, the convex portion moves while touching the touch surface according to the rotation operation. By moving the convex portion on the touch surface, the rotation operation of the knob is converted into a touch operation. When the rotation operation is performed by the user, the knob is vibrated with a waveform corresponding to the operation content by controlling the actuator.

Japanese Patent No. 6570799

In Patent Document 1, since the knob is attached and fixed on the screen of the display device to which the touch panel is attached, the user cannot rotate the rotary knob at an arbitrary position that is easy to operate. In addition, since the tactile sensation is presented to the knob by the vibration controlled by the actuator, the tactile sensation that can be presented to the knob is limited to the vibration sensation and the click sensation, and the operable range defined by stopping the rotation operation is presented. Can not do it. Further, since the frictional force between the screen of the display device and the rotary knob is always constant when there is no tactile sensation, the resistance feeling when rotating the knob cannot be changed. As described above, Patent Document 1 has a problem that intuitive operation by the user's tactile sensation is possible, and it is not possible to give an easy-to-use dial knob operation feeling.

The present disclosure has been made to solve the above-mentioned problems, and the tactile sensation that can be intuitively operated by the user's tactile sensation and can give an easy-to-use dial knob operation feeling. It is intended to provide a presentation panel and a tactile presentation knob.

The tactile presentation panel according to the present disclosure is a tactile presentation panel in which a tactile presentation knob having a conductive member is placed on an operation surface and a tactile sensation is presented to a user through the tactile presentation knob. A movement amount calculation circuit that calculates the movement amount of the tactile presentation knob from the current coordinates on the tactile presentation panel and the past coordinates of the tactile presentation knob, and the movement amount calculated to the user based on the movement amount. A tactile intensity calculation circuit for calculating the tactile intensity and a tactile presentation circuit for setting a voltage signal waveform based on the tactile intensity are provided, and the movement amount is at least one of the rotation angle and the rotation speed of the tactile presentation knob. Is.

The tactile presentation panel according to the present disclosure can be intuitively operated by the user's tactile sensation, and can give an easy-to-use dial knob operation feeling.

FIG. 5 is an exploded perspective view schematically showing the configuration of a tactile presentation touch display according to the first embodiment. It is sectional drawing which shows schematic structure of the tactile presentation touch display of FIG. It is a schematic diagram for demonstrating the capacitance formed between the tactile electrode and the tactile presentation knob which the tactile presentation panel of FIG. 2 has. It is a perspective view for demonstrating the capacitance formed between the tactile electrode and the tactile presentation knob which the tactile presentation panel of FIG. 2 has. It is a graph which shows an example of the voltage signal of the 1st frequency applied to the 1st electrode of FIG. It is a graph which shows an example of the voltage signal of the 2nd frequency applied to the 2nd electrode of FIG. It is a graph which shows the amplitude modulation signal generated by the combination of each voltage signal of FIG. 5 and FIG. It is a top view which shows an example of the touch screen of FIG. It is a partial cross-sectional view along the line A1-A1 and the line A2-A2 of FIG. It is a top view which shows an example of the touch screen of FIG. It is a partial cross-sectional view along the line B1-B1 and the line B2-B2 of FIG. FIG. 3 is a plan view schematically showing the configuration of a touch panel having a segment structure according to the first embodiment. It is a top view which shows typically an example of the shape of the detection electrode and the excitation electrode of the touch panel of the segment structure by Embodiment 1. FIG. It is a top view which shows typically an example of the shape of the detection electrode and the excitation electrode of the touch panel of the segment structure by Embodiment 1. FIG. It is a top view which shows the structure of the tactile presentation screen of FIG. 2 schematically. It is a schematic diagram for demonstrating the capacitance formed between the tactile electrode and an indicator body which a tactile presentation panel of FIG. 2 has. FIG. 3 is a plan view schematically showing the configuration of a tactile presentation panel having a segment structure according to the first embodiment. It is a top view schematically showing an example of the shape of the tactile electrode of the tactile presentation panel of the segment structure by Embodiment 1. FIG. It is a top view schematically showing an example of the shape of the tactile electrode of the tactile presentation panel of the segment structure by Embodiment 1. FIG. It is a schematic diagram for demonstrating the capacitance formed between the tactile electrode and the tactile presentation knob when the pitch of the tactile electrode of the tactile presentation panel of FIG. 2 is larger than the diameter of the tactile presentation knob. It is a schematic diagram for demonstrating the capacitance formed between the tactile electrode and the tactile presentation knob when the pitch of the tactile electrode of the tactile presentation panel of FIG. 2 is smaller than the diameter of the tactile presentation knob. It is a schematic diagram which shows the structure of the rotating part of the tactile presentation knob by Embodiment 1. FIG. It is a schematic diagram which shows the structure of the fixing part in the case where the position where the tactile presentation knob is placed is fixed in one place by Embodiment 1. FIG. It is a schematic diagram which shows the structure of the rotation axis structure in the case where the position where the tactile presentation knob is placed according to Embodiment 1 moves. It is a schematic diagram for demonstrating the capacity profile of the line CC when the touch screen according to Embodiment 1 detects the position of the tactile presentation knob. It is a figure explaining the calculation of the rotation amount when there are a plurality of position detection units by Embodiment 1. FIG. It is a schematic diagram which shows the position of the edge part of the conductive elastic part by Embodiment 1. FIG. It is a block diagram schematically showing the structure of the tactile presentation touch panel of FIG. It is a schematic diagram for demonstrating the capacitance formed by the tactile presentation touch panel when the indicator body is not in contact with a tactile presentation knob in the tactile presentation touch panel of FIG. 6 is a timing chart schematically showing the operation timing of the tactile presentation touch panel of FIG. 1 when the indicator body is not in contact with the tactile presentation knob. It is a schematic diagram for demonstrating the capacitance formed by the tactile presentation touch panel when an indicator is in contact with a tactile presentation knob in the tactile presentation touch panel of FIG. 6 is a timing chart schematically showing the operation timing of the tactile presentation touch panel of FIG. 1 when the indicator is in contact with the tactile presentation knob. It is a schematic diagram for demonstrating the capacitance formed by the tactile presentation touch panel when the tactile presentation touch panel of FIG. 1 detects a touch position. It is a schematic diagram for demonstrating the capacitance formed by the tactile presentation touch panel when the tactile presentation touch panel of FIG. 1 generates a tactile sensation. It is an image diagram schematically showing the movement of the charge accumulated in the conductive elastic portion when the tactile presentation knob is connected to the ground via the indicator when the signal voltage is applied according to the first embodiment. Image diagram schematically showing the transfer of electric charge accumulated in the conductive elastic portion when a part of the tactile electrodes in which the tactile presentation knob is in contact with the dielectric layer when the signal voltage is applied according to the first embodiment is grounded and connected. Is. FIG. 3 is a block diagram schematically showing a configuration of a tactile presentation touch panel when a part of the tactile electrodes in contact with the tactile presentation knob when a signal voltage is applied according to the first embodiment is connected to the ground. It is a block diagram which showed the outline of the relationship of the display panel, the touch panel and the tactile presentation panel by Embodiment 1. FIG. It is a flowchart which shows the process of the tactile presentation by Embodiment 1. FIG. It is a flowchart which shows the hand release operation process by Embodiment 1. FIG. It is a figure which shows the process setting example of the hand release operation process by Embodiment 1. FIG. It is a figure which shows the conversion table of the rotation angle and the tactile sensation (operation feeling) of the tactile sensation presentation knob by Embodiment 1. FIG. It is a figure which shows the conversion table of the rotation angle and the tactile sensation (operation feeling) of the tactile sensation presentation knob by Embodiment 1. FIG. It is a figure which shows the conversion table of the rotation angle and the tactile sensation (operation feeling) of the tactile sensation presentation knob by Embodiment 1. FIG. It is a figure which shows the conversion table of the rotation angle and the tactile sensation (operation feeling) of the tactile sensation presentation knob by Embodiment 1. FIG. It is a figure which shows the conversion table of the rotation angle and the tactile sensation (operation feeling) of the tactile sensation presentation knob by Embodiment 1. FIG. It is a figure which shows the conversion table of the rotation angle of the tactile presentation knob and the display processing amount by Embodiment 1. FIG. It is a figure which shows the conversion table of the rotation angle of the tactile presentation knob and the display processing amount by Embodiment 1. FIG. It is a figure which shows the conversion table of the rotation angle of the tactile presentation knob and the display processing amount by Embodiment 1. FIG. It is a figure which shows the conversion table of the rotation angle and the tactile sensation (operation feeling) of the tactile sensation presentation knob by Embodiment 1. FIG. It is a figure which shows the conversion table of the rotation angle and the tactile sensation (operation feeling) of the tactile sensation presentation knob by Embodiment 1. FIG. It is a figure which shows the conversion table of the rotation angle and the tactile sensation (operation feeling) of the tactile sensation presentation knob by Embodiment 1. FIG. It is a figure which shows the conversion table of the rotation angle and the tactile sensation (operation feeling) of the tactile sensation presentation knob by Embodiment 1. FIG. It is a figure which shows the tactile sensation (operation feeling) of the tactile sensation presentation knob by Embodiment 1, and the conversion table of the tactile sensation imparting signal. It is a figure which shows the tactile sensation (operation feeling) of the tactile sensation presentation knob by Embodiment 1, and the conversion table of the tactile sensation imparting signal. It is a figure which shows the tactile sensation (operation feeling) of the tactile sensation presentation knob by Embodiment 1, and the conversion table of the tactile sensation imparting signal. It is a conceptual diagram which shows the other application example of Embodiment 1. FIG. It is a flowchart which shows the process of the tactile presentation by Embodiment 2. It is a figure which shows the conversion table of the rotation speed and the tactile sensation (operation feeling) of the tactile sensation presentation knob by Embodiment 2. FIG. It is a figure which shows the conversion table of the rotation speed and the tactile sensation (operation feeling) of the tactile sensation presentation knob by Embodiment 2. FIG. It is a figure which shows the conversion table of the rotation speed and the tactile sensation (operation feeling) of the tactile sensation presentation knob by Embodiment 2. FIG. It is a figure which shows the conversion table of the rotation speed of the tactile presentation knob and the display processing amount by Embodiment 2. FIG. It is a figure which shows the tactile sensation (operation feeling) of the tactile sensation presentation knob by Embodiment 2, and the conversion table of the tactile sensation imparting signal. It is a figure which shows the tactile sensation (operation feeling) of the tactile sensation presentation knob by Embodiment 2, and the conversion table of the tactile sensation imparting signal. It is a figure which shows the tactile sensation (operation feeling) of the tactile sensation presentation knob by Embodiment 2, and the conversion table of the tactile sensation imparting signal. It is a block diagram which showed the outline of the relationship between the display panel, the touch panel, the tactile presentation panel, and the moving body according to Embodiment 1. FIG. It is a flowchart which shows the process of the tactile presentation by Embodiment 3. FIG. It is a figure which shows the conversion table of the rotation angle and the tactile sensation (operation feeling) of the tactile sensation presentation knob by Embodiment 3. FIG. It is a figure which shows the conversion table of the rotation angle and the tactile sensation (operation feeling) of the tactile sensation presentation knob by Embodiment 3. FIG. It is a figure which shows the conversion table of the rotation angle and the tactile sensation (operation feeling) of the tactile sensation presentation knob by Embodiment 3. FIG. It is a figure which shows the conversion table of the rotation angle and the tactile sensation (operation feeling) of the tactile sensation presentation knob by Embodiment 3. FIG. It is a figure which shows the conversion table of the rotation angle and the tactile sensation (operation feeling) of the tactile sensation presentation knob by Embodiment 3. FIG. It is a figure which shows the conversion table of the rotation angle and the tactile sensation (operation feeling) of the tactile sensation presentation knob by Embodiment 3. FIG. It is a figure which shows the conversion table of the rotation angle of the tactile presentation knob and the display processing amount by Embodiment 3. FIG. It is a figure which shows the conversion table of the rotation angle of the tactile presentation knob and the display processing amount by Embodiment 3. FIG. It is a figure which shows the conversion table of the rotation angle and the drive control amount of the tactile presentation knob by Embodiment 3. FIG. It is a figure which shows the conversion table of the rotation angle and the drive control amount of the tactile presentation knob by Embodiment 3. FIG. It is a flowchart which shows the process of the tactile presentation by Embodiment 4. FIG. It is a figure which shows the operation image of the tactile presentation knob by Embodiment 5. It is a flowchart which shows the display process by the operation of the tactile presentation knob according to Embodiment 5. It is a figure which shows the series of translational movements of the tactile presentation knob by Embodiment 5. It is a figure which shows the conversion table between the update of the display process and the operation of the tactile presentation knob by Embodiment 5. It is a flowchart which shows an example of the display processing by the operation of the tactile presentation knob according to Embodiment 5. It is a figure which shows an example of the structure of the tactile presentation knob by Embodiment 5. It is a figure which shows the partial structure of the tactile presentation knob by Embodiment 5. It is a figure which shows the partial structure of the tactile presentation knob by Embodiment 5. It is a figure which shows an example of the structure of the tactile presentation knob by Embodiment 5. It is a figure which shows an example of the structure of the tactile presentation knob by Embodiment 5. It is a figure which shows the partial structure of the tactile presentation knob by Embodiment 5. It is a figure which shows the partial structure of the tactile presentation knob by Embodiment 5. It is a figure which shows an example of the structure of the tactile presentation knob by Embodiment 5. It is a figure which shows the partial structure of the tactile presentation knob by Embodiment 5. It is a figure which shows an example of the structure of the tactile presentation knob by Embodiment 5. It is a figure which shows the partial structure of the tactile presentation knob by Embodiment 5. It is a figure which shows the partial structure of the tactile presentation knob by Embodiment 5. It is a figure which shows an example of the structure of the tactile presentation knob by Embodiment 5. It is a figure which shows the partial structure of the tactile presentation knob by Embodiment 5. It is a figure which shows the partial structure of the tactile presentation knob by Embodiment 5. It is a figure which shows the partial structure of the tactile presentation knob by Embodiment 5. It is a figure which shows the conversion table of the translational movement amount and display processing amount at the time of one-way operation of the tactile presentation knob in Embodiment 5. It is a figure which shows the conversion table of the translational movement amount and display processing amount at the time of one-way operation of the tactile presentation knob in Embodiment 5. It is sectional drawing of the tactile presentation panel in Embodiment 6.

<Embodiment 1>
<Tactile presentation touch display>
FIG. 1 is an exploded perspective view schematically showing a configuration of a tactile presentation device that presents a tactile sensation and a tactile sensation of an operation amount by placing a tactile presentation knob 3 on a tactile presentation touch display 1 according to the first embodiment. .. FIG. 2 is a cross-sectional view schematically showing the configuration of the tactile presentation touch display 1.

The tactile presentation touch display 1 has a tactile presentation touch panel 400 and a display panel 300 to which the tactile presentation touch panel 400 is attached. The display panel 300 has a pressure sensor 216. The tactile presentation touch panel 400 has a tactile presentation panel 100 and a touch panel 200. The tactile presentation panel 100 includes a tactile presentation screen 150 and a voltage supply circuit 110. The touch panel 200 has a touch screen 250 and a touch detection circuit 210.

In the first embodiment, the tactile presentation screen 150 is arranged on the side (front side) of the tactile presentation touch display 1 facing the user, and is on the surface (front side surface) of the touch screen 250 facing the user. Is fixed by the adhesive 20b. The touch screen 250 is fixed by an adhesive 20a on the surface (front side surface) of the display panel 300 facing the user.

The tactile presentation screen 150 has a transparent insulating substrate 101, a tactile electrode 102, and a dielectric layer 106. The tactile electrode 102 includes a plurality of first electrodes 102a and a plurality of second electrodes 102b arranged alternately on the transparent insulating substrate 101 at intervals. The dielectric layer 106 covers the plurality of first electrodes 102a and the plurality of second electrodes 102b. The tactile presentation screen 150 is electrically connected to the voltage supply circuit 110 by an FPC (Flexible Print Circuit) 108.

The touch screen 250 has a transparent and insulating substrate 201, an excitation electrode 202, a detection electrode 203, an interlayer insulating layer 204, and an insulating layer 205. The touch screen 250 is electrically connected to the touch detection circuit 210 by an FPC 108. The touch detection circuit 210 detects the touched position on the transparent insulating substrate 101 of the tactile presentation screen 150. This enables not only tactile presentation but also touch position detection on the transparent insulating substrate 101. The touch detection circuit 210 has, for example, a detection IC (Integrated Circuit) for detecting a change in capacitance due to touch and a microcomputer. The details of the configuration of the touch screen 250 will be described later with specific examples.

The display panel 300 has two transparent insulating substrates facing each other and a display function layer sandwiched between them and having a display function. The display panel 300 is typically a liquid crystal panel. The display panel 300 may be an organic EL (Electro-Luminescence) panel, a micro LED (Micro Light Emitting Diode) panel, or an electronic paper panel. The touch panel 200 is typically a PCAP.

<Overview of tactile presentation panel>
FIG. 3 is a diagram for schematically explaining the _{capacitance CNE} formed between the tactile electrode 102 and the tactile presentation knob 3 included in the tactile presentation panel 100. FIG. 4 is a perspective view of FIG. When the tactile presentation knob 3 touches the contact surface CT which is a part of the front surface surface of the tactile presentation screen 150, electrostatic force is generated between the tactile presentation knob 3 on the contact surface CT and the tactile electrode 102 via the dielectric layer 106. Capacitance C _NE is formed. In these figures, only the tactile presentation voltage generation circuit 113 included in the voltage supply circuit 110 (see FIG. 2) is shown for easy viewing, and other configurations included in the voltage supply circuit 110 are shown. Not shown. A more specific configuration of the voltage supply circuit 110 will be described later.

The tactile presentation voltage generation circuit 113 included in the voltage supply circuit 110 includes a first voltage generation circuit 113a and a second voltage generation circuit 113b. The first voltage generation circuit 113a applies _a voltage signal Va to the first electrode 102a located on at least a part of the region of the transparent insulating substrate 101 among the plurality of first electrodes 102a. form is used to apply a voltage signal V _a of 1, the transparent insulating substrate 101 to all of the first electrode 102a positioned on at least a part of the region. The second voltage generation circuit 113b applies a _{voltage signal V b} to the second electrode 102b located on at least a part of the region of the transparent insulating substrate 101 among the plurality of second electrodes 102b. _{In the first embodiment, the voltage signal V b} is applied to all the second electrodes 102 b located on at least a part of the transparent insulating substrate 101.

Each of FIGS. 5 and 6 is a graph showing an example of the voltage signal V _a and the voltage signal V _b. Voltage signal _{V a} of the first voltage generating circuit 113a (first voltage signal) has a first frequency. _{The voltage signal V b} (second voltage signal) of the second voltage generation circuit 113b has a second frequency different from the first frequency. The amplitude of the voltage signal V _b of the voltage signal V _a, may be the same amplitude V _L. In the example of FIGS. 5 and 6, as a voltage signal V _a and the voltage signal V _b, sine waves different frequencies are used. Instead of a sine wave, a pulse wave or one having another shape may be used. In order to generate a sufficiently large tactile sensation, the amplitude _VL is preferably about several tens of V.

Figure 7 is a graph showing the amplitude modulation signal V _N to the voltage signal V _{a (see} FIG. 5) and the voltage signal V _{b (see} FIG. 6) is generated by combine. The the first electrode 102a is applied a voltage signal _{V a,} and the the second electrode 102b is a voltage signal _{V b} is applied. _{As a result, in the region where the capacitance CNE} (see FIG. 4) between each of the first electrode 102a and the second electrode 102b and the tactile presentation knob 3 is formed, the maximum is about twice the _{amplitude VL.} discharge in accordance with the amplitude modulation signal V _N having an amplitude V _H are repeated. As a result, the tactile presentation knob 3 in contact over the first electrode 102a and the second electrode 102b via the dielectric layer 106, the electrostatic force corresponding to the amplitude modulation signal V _N of the maximum amplitude V _H is applied. Amplitude modulation signal V _N, corresponding to the difference between the first frequency and the second frequency, having a beat frequency. Therefore, when the tactile presentation knob 3 rotates on the tactile presentation screen 150, the frictional force acting on the tactile presentation knob 3 changes at the above-mentioned beat frequency. As a result, the tactile presentation knob 3 vibrates at the beat frequency. The user perceives the vibration of the tactile presentation knob 3 as a tactile sensation obtained from the tactile presentation screen 150. As described above, the tactile presentation screen 150 included in the tactile presentation panel 100 is configured to generate a tactile sensation by changing the frictional force applied to the tactile presentation knob 3 by controlling the electrostatic force applied to the tactile presentation knob 3. Has been done.

As described above, the amplitude-modulated signal V _N having approximately twice the voltage as compared with each of the input voltage signal V _{a (see} FIG. 5) and the voltage signal V _{b (see} FIG. 6) is generated. Thus, the amplitude modulation signal V _N required to effect the desired frictional force haptic presentation knob 3, _(see FIG. 5) the voltage signal V _a having the approximate half of the voltage and the voltage signal V _b ( It can be generated by (see FIG. 6). Therefore, an equivalent electrostatic force can be generated at a voltage of 1/2 as compared with the case where the amplitude modulation signal is directly input to the first electrodes 102a and 102b, and low voltage drive becomes possible.

In order to present a sufficiently large tactile sensation to the user, the maximum amplitude V _H may be correspondingly large enough, and the amplitude _VL may be a small value. Therefore, the amplitude _VL does not have to be large enough to generate a sufficiently large tactile sensation by itself. Results amplitude V _L is set as such, in the state in which only one of the first electrode 102a and the second electrode 102b is in contact with the tactile sense presentation knob 3, the frequency of the voltage signal V _a and the voltage signal V _b No matter how selected, the user barely perceives the sense of touch.

Tactile presentation knob 3 in order to facilitate located to extend across the first electrode 102a and the second electrode 102b is the pitch _{P E} of the tactile electrode 102 is smaller than the diameter _{R NE} of the contact surface CT is preferable. The details will be described later.

<Touch panel>
FIG. 8 is a plan view showing a capacitive touch screen 250a as an example of the touch screen 250 (see FIG. 2). FIG. 9 is a partial cross-sectional view taken along the lines A1-A1 and A2-A2 of FIG.

The touch screen 250a has a plurality of row direction wiring layers 206 and a plurality of column direction wiring layers 207. Each of the row direction wiring layers 206 is composed of a plurality of electrically connected excitation electrodes 202 (see FIG. 2), and each of the column direction wiring layers 207 is composed of a plurality of electrically connected detection electrodes 203 (FIG. 2). 2). In FIGS. 8 and 9, the row direction wiring layer 206 and the column direction wiring layer 207 are shown ignoring such a fine structure. The excitation electrode 202 (see FIG. 2) has a metal single-layer or multilayer film, or a multilayer structure containing either of these and using other conductive materials. As the metal, a metal having a low resistance such as aluminum or silver is preferable. The same applies to the detection electrode 203 (see FIG. 2). By using metal as the wiring material, the wiring resistance can be reduced. On the other hand, the metal wiring is opaque, so it is easy to see. In order to reduce the visibility and increase the transmittance of the touch screen, a thin wire structure may be added to the metal wiring. The wire structure is typically mesh-like.

Each of the row direction wiring layers 206 extends along the row direction (x direction in the figure), and each of the column direction wiring layers 207 extends along the column direction (y direction in the figure). .. The plurality of row direction wiring layers 206 are arranged at intervals in the column direction, and the plurality of column direction wiring layers 207 are arranged at intervals in the row direction. As shown in FIG. 8, in a plan view, each of the row direction wiring layers 206 intersects the plurality of column direction wiring layers 207, and each of the column direction wiring layers 207 intersects the plurality of row direction wiring layers 206. ing. The row direction wiring layer 206 and the column direction wiring layer 207 are insulated by an interlayer insulating layer 204.

The interlayer insulating layer 204 is composed of a single-layer film of an organic insulating film, a single-layer film of an inorganic insulating film, or a multilayer film. The inorganic insulating film is excellent for improving the moisture resistance, and the organic insulating film is excellent for improving the flatness. As the inorganic insulating film, for example, a transparent silicon-based inorganic insulating film such as a silicon oxide film, a silicon nitride film, or a silicon oxide nitride film, or a transparent inorganic insulating film made of a metal oxide such as alumina is used. The material of the organic insulating film is a polymer material having a main chain made of silicon oxide, a silicon nitride film or a silicon oxide nitride film, and having an organic substance bonded to a side chain or a functional group thereof, or carbon. A thermosetting resin having a main chain can be used. Examples of the thermosetting resin include acrylic resin, polyimide resin, epoxy resin, novolak resin, and olefin resin.

Each of the row direction wiring layers 206 of the touch screen 250a is connected to the touch screen terminal portion 208 by the lead wiring layers R (1) to R (m). Each of the row direction wiring layers 207 is connected to the touch screen terminal portion 208 by the lead wiring layers C (1) to C (n). The touch screen terminal portion 208 is provided at the end portion of the substrate 201.

The lead-out wiring layers R (1) to R (m) are arranged outside the detectable area, and correspond so that the shortest distance can be obtained in order from the one closest to the center of the arrangement of the touch screen terminal portions 208. Extends to the electrode to be. The lead-out wiring layers R (1) to R (m) are arranged as closely as possible while ensuring mutual insulation. The same applies to the lead wiring layers C (1) to C (n). With such an arrangement, the area of the outer portion of the detectable area of the substrate 201 can be suppressed.

A shield wiring layer 209 may be provided between the group of the lead wiring layers R (1) to R (m) and the group of the lead wiring layers C (1) to C (n). This suppresses the generation of noise in the other group due to the influence of one group. Further, it is possible to reduce the influence of the electromagnetic noise generated from the display panel 300 (see FIG. 2) on the lead-out wiring layer. The shield wiring layer 209 may be formed of the same material at the same time as the row direction wiring layer 206 or the column direction wiring layer 207.

The insulating layer 205 is provided on the substrate 201 so that the touch screen terminal portion 208 is exposed, and covers the row direction wiring layer 206, the column direction wiring layer 207, and the interlayer insulating layer 204. The insulating layer 205 can be formed of the same material as the interlayer insulating layer 204. When the display panel 300 is a liquid crystal panel, an upper polarizing plate with anti-glare treatment for the liquid crystal panel may be attached on the portion of the insulating layer 205 through which light for display is transmitted.

FIG. 10 is a plan view showing a capacitive touch screen 250b as an example of the touch screen 250 (see FIG. 2). FIG. 11 is a partial cross-sectional view taken along the lines B1-B1 and B2-B2 of FIG. In the examples of FIGS. 10 and 11, a so-called diamond structure is adopted.

The row direction wiring layer 206 and the column direction wiring layer 207 are arranged on the same layer. Each of the column direction wiring layers 207 has a plurality of diamond-shaped electrodes connected to each other as detection electrodes 203. The row direction wiring layer 206 has a plurality of diamond-shaped electrodes separated from each other and a bridge 206B for electrically connecting adjacent diamond-shaped electrodes as excitation electrodes 202. The interlayer insulating layer 204 is arranged so as to insulate between the bridge 206B and the column direction wiring layer 207. The bridge structure may be applied to the column direction wiring layer instead of the row direction wiring layer. Since the electrical resistance of the wiring layer tends to increase due to the formation of the bridge, it is preferable that the bridge structure is applied to the shorter of the column-direction wiring layer and the row-direction wiring layer.

As the material of the row direction wiring layer 206 and the column direction wiring layer 207, for example, a transparent conductive film such as Indium Tin Oxide (ITO) is used. Since ITO has translucency, it is less likely that the wiring layer will be visible to the user. Since a transparent conductive film such as ITO has a relatively high electric resistance, it is suitable for application to a small touch screen in which wiring resistance is not a problem. Further, since the transparent conductive film such as ITO is liable to be broken due to corrosion with other metal wiring, consideration must be given to moisture resistance and waterproofness in order to prevent corrosion.

Although the case where the structure of the touch screen and the structure of the display panel are independent has been described above, they may be inseparably integrated. For example, in the case of a so-called on-cell touch panel, the touch screen is formed directly on the substrate (typically a color filter substrate) of the display panel 300 without using the substrate 201. In the case of a so-called in-cell touch panel, a touch screen is formed between two transparent insulating substrates (not shown) included in the display panel 300.

Further, in the above touch screen, a detection structure composed of a row direction wiring layer 206 and a column direction wiring layer 207 is shown, but the structure is not limited to this. For example, FIG. 12 is a plan view schematically showing the configuration of a touch screen 250c having a detection structure in which segments composed of a detection electrode and an excitation electrode are arranged in a matrix. 13 and 14 show an example of the pattern shape of the excitation electrode 202a and the detection electrode 203b arranged in the segment of the area A in FIG. A touch screen 250c having a segment structure in which segments having an excitation electrode 202a and a detection electrode 203b as a set as shown in FIGS. 13 and 14 are arranged in a matrix and individually driven is used. The tactile presentation panel 100a and the touch panel 200 can also be used by switching the switch in the drive circuit.

<Pressure sensor>
The pressure sensor 216 shown in FIG. 1 will be described. Generally, the pressure-sensitive sensor 216 has a method of detecting the pressure applied to the diaphragm (diaphragm) made of semiconductor Si (silicon) as the deformation of the film, and the deformation of the display panel or the touch panel generated in response to the pressing force is electrostatic. There is a capacitance type that detects a change in capacitance, and a resistance type that detects a change in resistance of a metal wire due to strain according to the pressing force.

In the case of the capacitance type, for example, the pressure sensitive sensors 216 are installed at four diagonally symmetrical locations on the surface of the display panel 300 opposite to the display surface. In this case, when the operation surface of the tactile presentation touch display 1 is pushed by the tactile presentation knob 3, the tactile presentation touch display 1 bends in the direction opposite to the operation surface due to the pressing pressure, or the tactile presentation touch display 1 is operated. It may move slightly in the direction opposite to the surface. The pressure-sensitive sensor 216 detects the pressing force by detecting the capacitance change caused by the narrowing of the distance between the capacitance detection electrodes arranged in the pressure-sensitive sensor 216. Each capacitance detection electrode in the pressure sensor 216 is parallel to the operation surface of the tactile presentation touch display 1 and is installed at an arbitrary interval.

Even in the case of a method other than the capacitance type, the pressing force is detected by detecting the shape change due to the pressing force of any of the members constituting the tactile presentation touch display 1.

In FIG. 1, the pressure sensor 216 is arranged on the lower side (the side opposite to the display surface) of the display panel 300, but the present invention is not limited to this. The pressure-sensitive sensor 216 has good reproducibility of the relationship between the shape change and the pressing force in the structure of the tactile presentation touch display 1, the shape change due to the pressing force is large, and the pressure-sensitive sensor 216 is arranged at the position where the sensitivity is the best. Just do it. Instead of the pressure sensor 216, for example, a sheet-shaped pressure sensor arranged in a matrix may be arranged on the back surface of the display panel 300. Further, not limited to this, a pressure sensor of the optimum method for detection can be arranged.

<Tactile presentation panel>
FIG. 15 is a plan view schematically showing the configuration of the tactile presentation screen 150. FIG. 16 is a schematic diagram illustrating the formation of a _{capacitance CNE} between the tactile electrode 102 and the tactile presentation knob 3.

As described above, the tactile presentation screen 150 has a transparent insulating substrate 101, a tactile electrode 102, and a dielectric layer 106. Further, a tactile presentation panel terminal portion 107 is provided at the end of the transparent insulating substrate 101, and a plurality of drawer wiring layers 105 are arranged on the transparent insulating substrate 101. The dielectric layer 106 is provided so that the tactile presentation panel terminal portion 107 is exposed. The tactile electrode 102 is connected to the tactile presentation panel terminal portion 107 via the lead-out wiring layer 105. A voltage supply circuit 110 (see FIG. 2) is connected to the tactile presentation panel terminal 107 via the FPC 108 (see FIG. 1). The details of the lead-out wiring layer 105 will be described later.

Each of the tactile electrodes 102 extends along a extending direction (longitudinal direction in FIG. 15). The plurality of tactile electrodes 102 are arranged at intervals along the arrangement direction (horizontal direction in FIG. 15). In the example of FIG. 15, the transparent insulating substrate 101 has a rectangular shape having a long side and a short side. Therefore, the tactile presentation screen 150 also has a long side and a short side corresponding to the transparent insulating substrate 101. In the example of FIG. 12, the arrangement direction is along the long side. When the horizontal direction for the observer of the tactile presentation screen 150 is along the long side, the arrangement direction is along the horizontal direction.

In the above, in the tactile presentation screen 150, an example in which the tactile electrodes 102 extend in the extending direction and are arranged along the arrangement direction is shown, but the structure of the tactile electrodes 102 is not limited to this, and is shown, for example, in FIG. A plurality of segments may be arranged in a matrix as in the tactile presentation panel 100a. 18 and 19 show an example of the pattern shape of the tactile electrode 102 arranged in the segment of the area A in FIG. The shape of the tactile electrode 102 is not limited to the shape shown in FIGS. 18 and 19, but the structure in which the first electrode 102a and the second electrode 102b are adjacent to each other and the mutual capacitance between the electrodes in different areas is more important than the mutual capacitance in the same area. The structure may be such that the mutual capacitance is larger. Specifically, the distance between the first electrode 102a and the second electrode 102b in the same area may be narrower than the distance between the first electrode 102a and the second electrode 102b between different areas. As a result, the influence of the capacitance formed between the detection electrode 203 of the touch panel 200 and the tactile electrode 102 on the touch detection accuracy can be suppressed, so that the wiring resistance of the tactile electrode 102 can be further lowered, and the tactile sensation can be further reduced. It is possible to improve the strength.

_{The larger the capacitance CNE} formed between the tactile electrode 102 and the tactile presentation knob 3, the stronger the tactile sensation can be presented. From this point of view, it is preferable that the area of the tactile electrode 102 is large. When the size of the area of the tactile electrode 102 is prioritized, it becomes difficult to make the tactile electrode 102 difficult to see by imparting a fine structure to the tactile electrode 102. The tactile electrode 102 may be formed of a transparent conductive film in order to increase the area of the tactile electrode 102 and make the tactile electrode 102 difficult to see. ITO is a typical material for a transparent conductive film. Since a transparent conductive film such as ITO has a relatively high electric resistance as compared with a metal, it is suitable for application to a small touch screen in which wiring resistance is not a problem. If it is necessary to apply it to a large touch screen where wiring resistance is a problem, increase the ITO film thickness or increase the dopant content to reduce the resistivity. In this case, the light absorption rate of ITO may change and the touch screen may appear colored, so that it may be necessary to adjust the color of the display. Further, since the transparent conductive film such as ITO is liable to be broken due to corrosion with other metal wiring, corrosion is prevented when the wiring resistance is lowered by the laminated structure of the electrode with other metal. Therefore, consideration must be given to moisture resistance and waterproofness.

Instead of using the transparent conductive film as described above, the tactile electrode 102 is an electrode having a multilayer structure containing either a single-layer film or a multilayer film of a metal, or using any of these and also using another conductive material (hereinafter,). It may also be referred to as a “metal film-containing electrode”). As the metal, a metal having a low resistance such as aluminum or silver is preferable. Wiring resistance can be reduced by using a metal film-containing electrode. On the other hand, since the metal film is opaque, it is easily visible. Therefore, in order to make the metal film less visible, a fine wire structure may be provided to the metal film-containing electrode. The wire structure is typically mesh-like.

The dielectric layer 106 is composed of a single-layer film of an organic insulating film, a single-layer film of an inorganic insulating film, or a multilayer film. In the case of a multilayer film, different types of organic insulating films may be laminated, different types of inorganic insulating films may be laminated, or an organic insulating film and an inorganic insulating film may be laminated. The inorganic insulating film has high moisture impermeability, high hardness, and high wear resistance. Since the tactile presentation knob 3 rotates on the dielectric layer 106, the dielectric layer 106 requires high wear resistance. The organic insulating film is preferable for obtaining high flatness, but has low hardness and low wear resistance. Therefore, in order to obtain both high flatness and high wear resistance, it is preferable to form an inorganic insulating film on the organic insulating film. As the inorganic insulating film, for example, a transparent silicon-based inorganic insulating film such as a silicon oxide film, a silicon nitride film, or a silicon oxide nitride film, or a transparent inorganic insulating film made of a metal oxide such as alumina is used. The material of the organic insulating film is a polymer material having a main chain made of silicon oxide, a silicon nitride film or a silicon oxide nitride film, and having an organic substance bonded to a side chain or a functional group thereof, or carbon. A thermosetting resin having a main chain can be used. Examples of the thermosetting resin include acrylic resin, polyimide resin, epoxy resin, novolak resin, and olefin resin.

The capacitance C _NE is represented by the following equation (1).
C _NE = Q / V = εS / d ... (1)

Here, Q is the amount of charge stored in each of the conductive elastic portion 6 and the tactile electrode 102, V is the voltage between the tactile presentation knob 3 and the tactile electrode 102, ε is the dielectric constant of the dielectric layer 106, and S is. The contact area between the conductive elastic portion 6 and the tactile electrode 102 via the dielectric layer 106, and d is the thickness of the dielectric layer 106. The capacitance C _NE is proportional to the dielectric constant ε and inversely proportional to the film thickness d.

From the above equation (1), it is preferable that the dielectric constant ε is high in order to increase the _{capacitance CNE.} Specifically, it is preferable that the dielectric layer 106 includes a film having a relative permittivity of 10 or more (hereinafter, also referred to as “high dielectric constant insulating film”). In a high dielectric constant insulating film, a state in which positive and negative charges are displaced in the material due to an electric field applied from the outside occurs (this is generally called dielectric polarization). In dielectric polarization, the charge generated by polarization (generally called polarization charge) is maintained while the voltage is held, and when the voltage decreases, the polarization charge decreases and the dielectric polarization decreases, and the applied voltage is reduced to zero volts. Then, the dielectric polarization also disappears. The direction of dielectric polarization can be changed by an electric field. The high dielectric constant insulating film may be used as a single layer, or may be used as a multilayer film by laminating with another low dielectric constant inorganic or organic insulating film or another high dielectric constant insulating film. good. Generally, the higher the dielectric constant, the higher the refractive index. Therefore, by laminating a high dielectric constant insulating film and a low dielectric constant insulating film, a laminated structure of a high refractive index film and a low refractive index film can be obtained. Due to this laminated structure, the dielectric layer 106 can also function as an antireflection film.

Further, from the above equation (1), it is preferable that the thickness d is small in order to increase the _{capacitance CNE.} By laminating the high dielectric constant insulating film and the organic insulating film, the film thickness of the organic insulating film can be reduced while ensuring sufficient insulating properties. As a result, the thickness d of the dielectric layer 106 can be reduced.

Assuming that the tactile electrode has a matrix structure (that is, a structure having an X electrode and a Y electrode intersecting each other) (see, for example, Japanese Patent Application Laid-Open No. 2015-097076), there is a step at the intersection of the X electrode and the Y electrode. That is, unevenness occurs. This unevenness is flattened if the thickness of the insulating layer covering it is large, but there is a limit to the thickness of the insulating layer in order to avoid an excessive decrease in the _{capacitance CNE.} Therefore, unevenness may occur on the front surface of the tactile presentation screen. When this uneven texture is mixed with the texture brought about by the electrostatic force from the tactile electrode, it becomes difficult to give the intended texture to the user. When an organic insulating film having a surface shape flattening effect is used as the dielectric layer 106, the occurrence of the above-mentioned unevenness can be avoided, but a certain large thickness is required for flattening, so that the capacitance _CNE Is inevitable.

On the other hand, according to the first embodiment, since the tactile electrode 102 does not have an intersection, the size of the unevenness can be suppressed to about the thickness of the tactile electrode 102. This makes it possible to thin the organic film having a flattening effect or to apply a high dielectric constant insulating film having a low flattening effect. As a result, the capacitance C _NE can be made larger than that in the case of the matrix structure. Further, since the contact surface of the tactile presentation screen 150 with the tactile presentation knob 3 has few irregularities, the tactile sensation caused by the irregularities on the surface of the tactile presentation screen 150 is not given to the tactile presentation knob 3 when no voltage signal is applied. , The tactile sensation of the tactile presentation knob 3 when a voltage signal is applied becomes clearer.

Further, even in the electrostatic capacitance C _NE is the same, if the tactile presentation knob 3 Yasukere slip on the dielectric layer 106, change the change in electrostatic force of the frictional force between the tactile sense presentation knob 3 and the tactile electrode 102 It becomes easy for the user to perceive it. This can give a greater tactile sensation to the user. In order to make the tactile presentation knob 3 slippery on the dielectric layer 106, it is necessary to suppress the adhesion between the dielectric layer 106 and the tactile presentation knob 3. Therefore, for example, on the outermost surface of the dielectric layer 106, on the contact surface of the conductive elastic portion 6 with the dielectric layer 106, or both, the water repellency is higher than that inside the dielectric layer 106. A film having the above may be provided.

<Electrode pitch>
Figure 20 is a schematic of the pitch P _E of the tactile electrode 102 at greater than the diameter R _FE of the tactile presentation knob 3, illustrating the capacitance C _NE formed between the haptic electrode 102 and the tactile sense presentation knob 3 It is a figure. Figure 21 is a schematic diagram pitch P _E of the tactile electrode 102 when less than the diameter R _FE, illustrating the capacitance C _NE formed between the haptic electrode 102 and the tactile sense presentation knob 3.

In the first embodiment, as described above, each of the first electrode 102a and the second electrode 102b adjacent frequencies different voltage signal _{V a} (see FIG. 5) and the voltage signal _{V b} (see FIG. 6) applied By doing so, _{an electrostatic force corresponding to the amplitude modulation signal VN} (see FIG. 7) is generated. Thus, the frictional force between the dielectric layer 106 and the tactile sense presentation knob 3 changes in response to the beat frequency of the amplitude modulation signal V _N, the change user perceives as tactile. In the state shown in FIG. 20, only the voltage signal V _a tactile presentation knob 3 does not act a voltage signal V _b acts haptic is not generated not generated amplitude modulation signal V _N. On the other hand, when the tactile presentation knob 3 is located above the boundary between the first electrode 102a and the second electrode 102b, a tactile sensation is generated. Therefore, in the configuration of FIG. 20, depending on the position of the tactile presentation knob 3, there is a position where the tactile sensation is generated and a position where the tactile sensation is not generated. In contrast, in the state shown in FIG. 21, both of the voltage signals to the tactile sense presentation knob 3 V _a and the voltage signal V _b regardless of the position of the tactile presentation knob 3 acts, thereby amplitude modulation signal V _N Occurs. Therefore, in the configuration of FIG. 21, the tactile sensation can be felt regardless of the position of the tactile presentation knob 3, and the position of the tactile presentation knob 3 can be arbitrarily set. That is, in order to facilitate the position of the tactile presentation knob 3 so as to straddle the first electrode 102a and the second electrode 102b, for example, when the conductive elastic portion 6 is divided as shown in FIG. 22 described later, the conductive portion 6 is conductive. it is preferable that the width 6b of sexual elastic portion 6 is larger than the pitch P _E of the tactile electrode 102. Also, if you are not dividing the conductive elastic portion 6 into a plurality, the outer diameter 6a of the conductive elastic portion 6 is preferably larger than the pitch P _E of the tactile electrode 102.

<Structure of tactile presentation knob>
FIG. 22 is a schematic view showing the structure of the rotating portion 4 of the tactile presentation knob 3. FIG. 23 is a schematic view of the fixing portion 5 when the rotating portion 4 is placed on the contact surface of the tactile presentation panel 100 and rotated when the position where the tactile presentation knob 3 is placed is fixed at one place. FIG. 24 is a schematic view of a rotation shaft portion 5a that suppresses horizontal movement when the rotating portion 4 of the tactile presentation knob 3 is placed on the contact surface of the tactile presentation panel 100 and rotated. The rotating portion 4 and the fixing portion 5 (rotating shaft portion 5a) are both made of metal such as aluminum, SUS, and copper, and polyvinyl chloride, polystyrene, ABS resin, AS resin, acrylic resin, polyethylene, polypropylene, polyvinyl alcohol, and polychloride. Vinylidene, polyethylene terephthalate, polycarbonate, modified polyphenylene ether, polyamide, polybutylene terephthalate, polyacetal, ultrahigh molecular weight polyethylene, polyarylate, polysulfone, polyethersulfone, polyamideimide, polyetherimide, thermoplastic polyimide, polyphenylene sulfid, liquid crystal It consists of resins such as sex polymers, polyether ether ketones, and fluororesins. Since the operation feeling and the tactile sensation change depending on the weight of the tactile presentation knob 3, the material is selected according to the user's preference, the usage environment of the tactile presentation knob 3, the purpose of use, and the like. Since the rotating portion side surface 10 needs to be electrically connected to the conductive elastic portion 6 and the indicator body 2 (see FIG. 31), the surface portion 10s and the boundary portion conductive portion that come into contact with the indicator body 2 of the rotating portion side surface 10 16s is made of a metal or a conductive resin material (resistance 10 ³ Omega or less.). The resistance values of the surface portion 10s and the boundary portion conductive portion 16s are the wiring resistance of the tactile electrode 102, the resistance of the conductive elastic portion 6, and the conductive elasticity of the tactile electrode 102 in the RC circuit formed between the dielectric layer 106. It is desirable to set the value so that the capacitance C formed between the portions 6 is the largest.

The shape of the shaft portion 14 and the shape of the hole portion of the fixing hole 9 have the same cylindrical shape. The tactile presentation knob 3 refers to one in which the shaft portion 14 of the fixing portion 5 (rotating shaft portion 5a) is inserted into the fixing hole 9 of the rotating portion and integrated. For example, as shown in FIGS. 22 and 23, the rotating portion 4 and the shaft portion 14 may not be separated by fitting the shaft portion 14 having the unevenness formed into the fixing hole 9. It is desirable that the gap between the shaft portion 14 and the fixing hole 9 is as narrow as possible within the range in which the rotating portion 4 rotates smoothly. When the gap between the shaft portion 14 and the fixing hole 9 is narrow, the shake of the rotating shaft when the tactile presentation knob 3 is rotated becomes small, and the original tactile sense such as the shaking and vibration of the rotating portion 4 caused by the shake of the rotating shaft is presented. It suppresses giving the indicator 2 a tactile sensation different from the tactile sensation that should be given to the knob 3, and the tactile sensation given to the user becomes clearer. In order for the rotating portion 4 to rotate smoothly, it is desirable that the surface irregularities on the surface of the shaft portion 14 and the inner surface of the fixing hole 9 are as small as possible, and the surface roughness Ra is 0.5 μm or less in both cases. desirable. It is desirable that the inner diameter tolerance of the fixing hole 9 is 0 to +0.5 mm and the outer diameter tolerance of the shaft portion 14 is −0.0005 mm.

The fixed portion 5 (rotating shaft portion 5a) is a portion that serves as a rotating shaft when the rotating portion 4 rotates, and serves to keep the operation surface of the tactile presentation panel 100 and the rotating shaft of the rotating portion 4 perpendicular to each other. Therefore, the center of the shaft portion 14 of the fixing portion 5 (rotating shaft portion 5a) is orthogonal to the bottom surface portion 15 and the adhesive portion 17 (shaft structure holding portion 17a), and the adhesive portion 17 (shaft structure holding portion 17a). The bottom surface of the conductive elastic portion 6 is flat, and the contact surface of the conductive elastic portion 6 with the tactile presentation panel 100 and the adhesive portion 17 (shaft structure holding portion 17a) are located on the same plane. Although FIG. 23 shows the case where the diameter of the adhesive portion 17 and the diameter of the fixing base 13 are the same, the diameter of the shaft structure holding portion 17a and the diameter of the fixing base 13 may be different as shown in FIG. 24. ..

The surface portion 10s and the boundary portion conductive portion 16s of the rotating portion side surface 10 of the rotating portion 4 to which the indicator 2 comes into contact when rotating the rotating portion 4 are made of a conductive material, and are formed on the conductive elastic portion 6 and the position detecting portion 7. Is also electrically connected. The presence or absence of contact with the surface of the rotating portion 4 of the user is detected, and the accumulation of electric charges in the conductive elastic portion 6 is suppressed. The surface portion 10s and the boundary portion conductive portion 16s are made of the same material as the conductive elastic portion 6. In particular, it is desirable that the metal has a low resistance, and after forming the rotating portion 4 with a resin or the like, the surface portion 10s and the boundary portion conductive portion 16s may be formed by coating with metal plating or the like. Details will be described later.

The conductive elastic portion 6 is a conductor that forms a capacitance with the tactile electrode 102. The conductive elastic portion 6 is divided into two or more, and prevents the tactile strength from being lowered. The details of this effect will be described later. Since the conductive elastic portion 6 has elasticity, there is an effect of suppressing a 106 decrease in tactile strength due to a decrease in adhesion. Deterioration of the flatness of the surface of the tactile presentation panel 100 due to the processing accuracy of the rotating portion 4 and the fixing portion 5 (rotating shaft portion 5a) or the assembly accuracy of the tactile presentation screen 150, or minute irregularities on the surface of the tactile presentation panel 100. When the adhesion between the conductive elastic portion 6 and the surface of the tactile presentation panel is reduced due to such factors, the tactile electrode 102 and the conductive elastic portion 6 increase the capacitance through not only the dielectric layer 106 but also air having a small dielectric constant. As a result, the capacitance formed between the tactile electrode 102 and the conductive elastic portion 6 is reduced, resulting in a decrease in tactile strength. Since the conductive elastic portion 6 has elasticity, the gap between the dielectric layer 106 and the conductive elastic portion 6 due to the unevenness of the surface of the tactile presentation panel 100 is filled, and the conductive elastic portion 6 and the tactile presentation panel 100 are in close contact with each other. It is possible to prevent a decrease in tactile strength due to a decrease in sex. The material used for the conductive elastic portion 6 is CNR, CR rubber, NBR rubber, silicon, fluororubber, EPT rubber, SBR, butyl rubber, acrylic rubber, CSM rubber as a base material, and conductive carbon black or metal powder or the like. An elastic resin material called conductive rubber mixed with the above conductive substance is preferable. The volume resistivity may be any less 10 ⁶ [Omega] cm, the volume resistivity of the charge in the conductive elastic portion 6 lower the hardly accumulates. Details of the charge accumulation in the conductive elastic portion 6 will be described later. Further, since a capacitance is formed with the tactile electrode 102, it is desirable that the withstand voltage characteristic be as high as possible because the life and reliability of the conductive elastic portion 6 are improved. The position detection unit 7 forms a capacitance with the detection electrode 203 of the touch screen 250, and is used for detecting the position and the amount of rotation of the tactile presentation knob 3.

The material forming the position detection unit 7 is a conductor capable of forming a capacitance with the detection electrode 203, has elasticity similar to that of the conductive elastic portion 6, and may use the same material as the conductive elastic portion 6. .. When the adhesion to the tactile presentation panel 100 is good, the difference between the design value and the actual capacitance value is less likely to occur, and stable position detection accuracy can be obtained.

By making the conductive elastic portion 6 and the position detection portion 7 the same thickness so that they are in close contact with the surface of the tactile presentation panel 100 without forming a gap, strong tactile strength and highly accurate position detection can be obtained. can get. The flatness of the surface where the conductive elastic portion 6 and the position detection portion 7 and the tactile presentation panel 100 are in contact (measure the distance from a certain reference surface and the difference between the maximum value and the minimum value of the measured values) is 0.5 mm or less. Is desirable. Further, it is said that the diameter of the contact area of a person's finger with respect to the touch surface when operating the touch panel is about 3 mm for a child and 7 to 10 mm at the maximum for an adult, and generally, the contact area of a finger in various touch operations. since is said 20~400mm ^2, the area of the position detector 7 may be considered to be within the scope of 7 mm ² or more 400 mm ² or less.

<Detection of knob position and rotation amount>
FIG. 25 is a schematic diagram illustrating the capacitance profile of the line CC when the touch panel 200 at the time of detecting the position of the tactile presentation knob 3 detects it. Tactile generation on the tactile presentation knob 3 and position detection of the tactile presentation knob 3 are performed on a time-divided basis. During the period when the voltage signal is applied to the tactile electrode 102, the detection electrode 203 and the excitation electrode 202 are arbitrary so as not to form a capacitance with 0V or the tactile electrode 102 and cause a voltage drop applied to the tactile electrode 102. Apply voltage. When the detection electrode 203 detects the position, the tactile electrode 102 is brought into a floating state. Then, the tactile presentation is performed by detecting the amount of change in the capacitance between the excitation electrode 202 and the detection electrode 203 when the conductive elastic portion 6 and the detection electrode 203 form a capacitance via the tactile electrode 102. The position of the knob 3 is detected.

The detection electrode 203 detects the capacitance by forming a capacitance with both the position detection unit 7 and the conductive elastic portion 6. At that time, since there is a gap 8, the capacitance profile with the position detection unit 7 and the capacitance profile with the conductive elastic portion 6 have peaks at different positions, and each position is separately detected.

When the position detection unit 7 is one, the rotation amount of the tactile presentation knob 3 is calculated as the movement amount only in the rotation direction from the movement amount of the position detection unit 7 from the initial position. The position detection unit 7 does not necessarily have to be one. As shown in FIG. 26, when there are a plurality of position detection units 7, the direction vectors P1-P2 between the position detection units 7 at the initial positions (P1, P2) and the positions after movement (P1', P2') are used. The amount of rotation θ can be calculated from the direction vector P1'-P2'.

In FIG. 26, assuming that the center of rotation is P0, the amount of translational movement is Txy, the coordinate transformation matrix of the angle of rotation θ is R, and the unit matrix is I, the following equations (2) and (3) to P1'-P2'are equations. It is represented by (4).
P1'= R ・ P1- (RI) ・ P0 + Txy ・ ・ ・ (2)
P2'= R ・ P2- (RI) ・ P0 + Txy ・ ・ ・ (3)
P1'-P2'= R. (P1-P2) ... (4)

When the coordinate transformation matrix R is equal to the identity matrix I (R = I), it is a translational operation, and Txy is expressed by the following equation (5).
Txy = P1'-P1 ... (5)

When the operation range of the tactile presentation knob 3 is set to exceed 360 degrees, the addition / subtraction correction of 360 degrees × n (n is an integer) is performed with reference to the rotation angle and the rotation angle change direction of the position detection unit 7. The rotation angle from the initial position can be calculated with. As the number of pairs of each position detection unit 7 used for calculation increases, the measurement accuracy of the rotation angle improves, but since the area of the conductive elastic unit 6 becomes smaller, the position detection unit balances the tactile strength and the measurement accuracy of the rotation angle. The number of 7 is determined. A designated position line 11 (see FIG. 22) indicating the designated position of the tactile presentation knob 3 may be arranged on the rotating portion 4 to visualize the knob position. When the designated position line 11 is arranged, the calculation process can be simplified by arranging the position detection unit 7 directly below the designated position line 11.

<Distance between electrodes>
FIG. 27 shows an example of the positional relationship between the conductive elastic portion 6 and the position detection portion 7 in the tactile presentation knob 3. When the position detection unit 7 is arranged between the adjacent conductive elastic portions 6, the distance between the conductive elastic portion 6 and the position detection portion 7 is set between the gap 8 and the adjacent conductive elastic portions 6. The distance between the conductive elastic portions 6 when the position detection portion 7 is not arranged is indicated by the gap 8a. When the unevenness caused by the thickness of the electrode is on the surface of the tactile presentation panel 100, when the conductive elastic portion 6 slides while contacting the tactile electrode 102 via the dielectric layer 106, the tactile presentation knob 3 is caused by the unevenness of the surface. Vibrates. This vibration is sensed by the indicator 2 regardless of the voltage signal applied to the tactile electrode 102. As a result, it may be difficult for the indicator 2 to feel the tactile sensation obtained by the voltage signal. In other words, tactile strength can be reduced.

Even if the surface of the tactile presentation panel 100 is uneven, whether or not the indicator 2 is likely to feel it depends on the distance between the electrodes of the tactile electrodes 102 as described later. The more unevenness is allowed, the less necessary it is to increase the thickness of the dielectric layer 106 in order to alleviate the unevenness. That is, it is permissible to reduce the thickness of the dielectric layer 106. As a result, the capacity formed between the conductive elastic portion 6 and the tactile electrode 102 can be increased. Therefore, a stronger tactile sensation can be generated. Further, when the distance between the electrodes of the tactile electrode 102 is wider than the gap 8 between the conductive elastic portion 6 and the position detection portion 7, the edge portion 18 (see FIG. 27) of the conductive elastic portion 6 is the tactile electrode 102. It is desirable that the distance between the electrodes of the tactile electrode 102 is narrower than that of the gap 8 because the tactile sensation is unintentionally generated on the tactile presentation knob 3 due to the unevenness of the surface caused by the distance between the electrodes. Further, it is desirable that the distance between the electrodes of the tactile electrode 102 is narrow because the occupied area of the tactile electrode 102 is large, the capacitance formed with the conductive elastic portion 6 is large, and the obtained tactile strength is also large.

<Detailed configuration of the tactile presentation touch panel>
FIG. 28 is a block diagram schematically showing the configuration of the tactile presentation touch panel 400. Here, the excitation electrodes Ty (1) to Ty (m) are provided as the plurality of excitation electrodes 202, the detection electrodes Tx (1) to Tx (n) are provided as the plurality of detection electrodes 203, and the plurality of tactile electrodes 102 are provided. It is assumed that the tactile electrodes H (1) to H (j) are provided. The tactile electrodes H (1) to H (j) are arranged in order according to the numbers in parentheses, the odd tactile electrode 102 corresponds to the first electrode 102a, and the even tactile electrode 102 corresponds to the second electrode 102b. It corresponds. Further, for simplification of the description, one excitation electrode 202 constitutes one row direction wiring layer 206 (see FIG. 8 or FIG. 10), and one detection electrode 203 constitutes one column direction wiring layer 207 (see FIG. 8 or FIG. 10). (See FIG. 8 or FIG. 10) is configured.

As described above, the tactile presentation touch panel 400 has a touch panel 200 and a tactile presentation panel 100. The touch panel 200 has a touch screen 250 and a touch detection circuit 210. The tactile presentation panel 100 includes a tactile presentation screen 150 and a voltage supply circuit 110.

The touch detection circuit 210 includes an excitation pulse generation circuit 215, a charge detection circuit 212, a touch coordinate calculation circuit 214, and a touch detection control circuit 213. The touch detection control circuit 213 controls the operations of the excitation pulse generation circuit 215, the charge detection circuit 212, and the touch coordinate calculation circuit 214. The excitation pulse generation circuit 215 sequentially applies an excitation pulse signal to the excitation electrodes Ty (1) to Ty (m). The charge detection circuit 212 measures signals obtained from each of the detection electrodes Tx (1) to Tx (n). As a result, the charge detection circuit 212 detects the amount of charge of each of the detection electrodes Tx (1) to Tx (n). The information of the charge detection result is the excitation electrode Ty (k) and the detection electrodes Tx (1) to Tx (n) when the excitation pulse signal is applied to the excitation electrode Ty (k), where k is an integer of 1 or more and m or less. ) Represents a value corresponding to the mutual capacity with each of them. The charge detection circuit 212 can recognize which of the excitation electrodes Ty (1) to Ty (m) the excitation pulse signal is applied to by the control signal from the touch detection control circuit 213. The touch coordinate calculation circuit 214 obtains data on the coordinates touched by the indicator 2 (hereinafter referred to as “touch coordinate data”) based on the charge detection result.

The touch coordinate calculation circuit 214 outputs the touch coordinate data to the knob movement amount calculation circuit 220, and also outputs the touch operation information to the tactile formation condition conversion circuit 120 and the tactile presentation control circuit 114. The knob movement amount calculation circuit 220 outputs information on the rotation angle, rotation speed, and horizontal movement distance as the movement amount of the knob to the tactile formation condition conversion circuit 120 and the display screen processing circuit 321. The tactile formation condition conversion circuit 120 outputs the electric signal condition that realizes the tactile strength (operation feeling strength) calculated based on the input information to the tactile presentation control circuit 114. As described above, the touch detection circuit 210 has a function of a contact position detection unit that detects the contact position between the tactile presentation knob 3 and the operation surface of the tactile presentation panel 100. The tactile presentation panel 100 may have the function of the contact position detection unit.

The voltage supply circuit 110 includes a switch circuit 112, a tactile presentation voltage generation circuit 113, and a tactile presentation control circuit 114. _{The tactile presentation voltage generation circuit 113 applies a} voltage signal Va to the first electrode 102a of the tactile electrodes H (1) to H (j) via the switch circuit 112, _{and the voltage signal V b} to the second electrode 102b. Is applied. In other words, (in the figure, the horizontal direction) one direction tactile electrode H (1) arranged in respect to H (j), the voltage signal V _a and the voltage signal V _b is applied alternately. The switch circuit 112 takes an on state or an off state based on a command from the tactile presentation voltage generation circuit 113. The switch circuit 112 connects the tactile electrode 102 to the tactile presentation voltage generation circuit 113 in the on state, and puts the tactile electrode 102 in the floating state in the off state. In Embodiment 1, the switch circuit 112 has two switches 40, one to switch the electrical path to all the first electrodes 102a and the other to all the second electrodes 102b. Switch the electrical path. These two switches 40 may be controlled in conjunction with each other. The switch 40 corresponds to a switching unit.

The tactile presentation control circuit 114 refers to the tactile intensity information calculated by the tactile formation condition conversion circuit 120. The tactile presentation control circuit 114 can control the operation of the tactile presentation voltage generation circuit 113 based on this information. As described above, when the contact position between the tactile presentation knob 3 and the operation surface of the tactile presentation panel 100 exists in the preset operation area, the voltage supply circuit 110 operates with the tactile presentation knob 3 for the operation area. It has the function of a tactile control unit that controls to present the frictional force between the surface as a tactile sensation.

<Operation of tactile presentation touch panel>
FIG. 29 is a schematic diagram showing an image of the capacitance between the excitation electrode 202 and the detection electrode 203 when the indicator 2 is not in contact with the tactile presentation knob 3. FIG. 30 is a timing chart schematically showing the operation timing of the tactile presentation touch panel 400 (see FIG. 28) when the indicator 2 is not in contact with the tactile presentation knob 3.

When the indicator 2 is not in contact with the tactile presentation knob 3, both the conductive elastic portion 6 and the tactile electrode 102 are in a floating state and at the same potential as the detection electrode 203, and the charge detection circuit 212 has the detection electrode 203 and the excitation electrode. The amount of electric charge mainly due to the capacitance with 202 is detected. The touch detection control circuit 213 also outputs the control signal of the excitation electrode 202 to the tactile presentation voltage generation circuit 113.

Based on this control signal, the tactile presentation voltage generation circuit 113 can recognize the touch detection period P1. In the touch detection period P1, the tactile presentation voltage generation circuit 113 shuts off the switch 40 of the switch circuit 112. This breaks the electrical connection between the tactile presentation voltage generation circuit 113 and all tactile electrodes 102. As a result, the potentials of all the tactile electrodes 102 are in a floating state.

Next, in the touch coordinate calculation period P2, the touch coordinate calculation circuit 214 receives and holds the charge detection result of the mutual capacitance corresponding to each of the excitation electrodes Ty (1) to Ty (m) input and held from the charge detection circuit 212. In other words, touch by the indicator 2 based on the charge detection result of the capacitance of all the intersections formed by the excitation electrodes Ty (1) to Ty (m) and the detection electrodes Tx (1) to Tx (n). Determine if there is. The electric field coupling between the excitation electrode 202 and the detection electrode 203 is relaxed by the proximity or contact of the indicator body 2 such as a finger, and as a result, the charge charge in the mutual capacitance is reduced. Based on the degree of this decrease, the touch coordinate calculation circuit 214 can determine the presence or absence of touch. When the touch coordinate calculation circuit 214 determines that there is a touch, the touch coordinate calculation circuit 214 starts calculating the touch coordinate data based on the charge detection result. Specifically, the touch coordinate calculation circuit 214 performs arithmetic processing such as calculation of the center of gravity on the detection result of the intersection having the largest decrease in charge charge and the intersection around the intersection, so that the touch coordinates can be calculated. The data can be calculated. When the touch coordinate calculation circuit 214 determines that there is no touch, the touch coordinate calculation circuit 214 does not calculate the touch coordinate data and waits until the next charge detection result processing.

Here, the operation when the determination result of the presence or absence of contact with the tactile presentation knob 3 of the indicator 2 is obtained will be described below.

FIG. 31 is a schematic diagram showing an image of the capacitance between the excitation electrode 202 and the position detection unit 7 when the indicator 2 is in contact with the tactile presentation knob 3. FIG. 32 is a timing chart schematically showing the operation timing of the tactile presentation touch panel 400 (see FIG. 28) when the indicator 2 is in contact with the tactile presentation knob 3.

When the indicator 2 is in contact with the tactile presentation knob 3, the conductive elastic portion 6 is in a state of being grounded via the tactile presentation knob 3 and the indicator 2, and the detection electrode 203 is conductive via the tactile electrode 102. Capacitance is formed with the sexually elastic portion 6, and the capacitance between the detection electrode 203 and the excitation electrode 202 is reduced. As a result, the amount of charge detected by the charge detection circuit 212 decreases, and it is detected that the indicator 2 comes into contact with the tactile presentation knob 3.

In the touch detection period P1, a control signal representing the first conversion timing is output from the touch detection control circuit 213 to the excitation pulse generation circuit 215. In response to this control signal, the excitation pulse generation circuit 215 gives an excitation pulse signal (charge pulse signal) to the excitation electrode Ty (1). As a result, the inter-electrode capacitance (mutual capacitance) between the excitation electrode Ty (1) and each of the detection electrodes Tx (1) to Tx (n) intersecting the excitation electrode Ty (1) in a plan view is charged. The charge detection circuit 212 detects the amount of charge due to the charging using the detection electrodes Tx (1) to Tx (n). Then, the charge detection circuit 212 performs analog / digital conversion (A / D conversion) on the detection result, and the digital information obtained by the analog / digital conversion is used as the charge detection result of the mutual capacitance corresponding to the excitation electrode Ty (1). Is output to the touch coordinate calculation circuit 214. Similarly, the control signals representing the second to m conversion timings are sequentially output from the touch detection control circuit 213 to the excitation pulse generation circuit 215. The charge detection results of the mutual capacitance corresponding to the excitation electrodes Ty (2) to Ty (m) are output to the touch coordinate calculation circuit 214 corresponding to each of the second to second conversion timings.

The touch detection control circuit 213 also outputs the control signal to the tactile presentation voltage generation circuit 113. Based on this control signal, the tactile presentation voltage generation circuit 113 can recognize the touch detection period P1. In the touch detection period P1, the tactile presentation voltage generation circuit 113 shuts off the switch 40 of the switch circuit 112. This breaks the electrical connection between the tactile presentation voltage generation circuit 113 and all tactile electrodes 102. As a result, the potentials of all the tactile electrodes 102 are in a floating state.

Next, in the touch coordinate calculation period P2, the touch coordinate calculation circuit 214 receives and holds the charge detection result of the mutual capacitance corresponding to each of the excitation electrodes Ty (1) to Ty (m) input and held from the charge detection circuit 212. In other words, touch by the indicator 2 based on the charge detection result of the capacitance of all the intersections formed by the excitation electrodes Ty (1) to Ty (m) and the detection electrodes Tx (1) to Tx (n). Determine if there is. The electric field coupling between the excitation electrode 202 and the detection electrode 203 is relaxed by the proximity or contact of the indicator body 2 such as a finger, and as a result, the charge charge in the mutual capacitance is reduced. Based on the degree of this decrease, the touch coordinate calculation circuit 214 can determine the presence or absence of touch. When the touch coordinate calculation circuit 214 determines that there is a touch, the touch coordinate calculation circuit 214 starts calculating the touch coordinate data based on the charge detection result. Specifically, the touch coordinate calculation circuit 214 touches the detection result of the intersection having the largest decrease in charge charge and the intersection around the intersection by performing arithmetic processing such as calculation of the center of gravity. Coordinate data can be calculated. When the touch coordinate calculation circuit 214 determines that there is no touch, the touch coordinate data is not calculated and the process returns to the touch detection period P1. In order to enable such processing, the touch coordinate calculation circuit 214 assigns a signal representing a determination result of presence / absence of touch to the touch detection control circuit 213.

Next, in the touch coordinate transmission period P3, the touch coordinate calculation circuit 214 outputs the touch coordinate data to the knob movement amount calculation circuit 220 and touch operation information according to the touch coordinate data transmission timing from the touch detection control circuit 213. It is also output to the tactile formation condition conversion circuit 120 and the tactile presentation control circuit 114.

Next, in the determination period P4, the tactile presentation control circuit 114 determines the position of the tactile presentation knob 3 from the touch coordinate data, and determines the area for tactile presentation.

The tactile presentation control circuit 114 selects the tactile presentation signal waveform corresponding to the coordinates of the display screen and the tactile presentation knob 3 based on the input from the tactile presentation condition conversion circuit 120. The "tactual sense signal waveform" is intended to define the respective waveforms of the voltage signals V _a and the voltage signal V _b. Note the difference in waveform between the voltage signal V _a and the voltage signal V _b is typically a difference in frequency. The tactile presentation signal waveform is set inside or outside the tactile presentation control circuit 114. The type of the tactile presentation signal waveform may be one or more. When there is only one type of tactile presentation signal waveform, the process of selecting the tactile presentation signal waveform is not necessary. When there is more than one type of tactile presentation signal waveform, the type of tactile presentation signal waveform is selected based on the input from the tactile formation condition conversion circuit 120.

Next, during the tactile presentation signal application period P5, the tactile presentation control circuit 114 generates a tactile presentation signal with the tactile presentation signal waveform. Further, the switch 40 connected to the tactile electrode 102 in the region where the tactile presentation signal of the switch circuit 112 is input is connected to the tactile presentation voltage generation circuit 113 and is connected to the tactile electrode 102 in the region where the tactile presentation signal is not input. The connected switch 40 is connected to GND, or the tactile electrode 102 is floated without turning on the switch as it is. As a result, a signal is applied to the tactile electrode 102, so that the tactile sensation is presented. In the example of FIG. 32, an AC signal having an H level (high level) and an L level (low level) is applied to the tactile electrode 102. The tactile electrode 102 is charged at a high voltage of the positive electrode, typically plus a few tens of volts, during the H level period, discharged during the period of 0 level, and has a high voltage of the negative electrode, typically a negative number, at the L level. It is charged with 10 volts. The generation cycle and generation period of the pulse signal can be appropriately set based on the input from the tactile formation condition conversion circuit 120.

After the tactile presentation signal application period P5, the process returns to the touch detection period P1. As a result, the above-mentioned operation is repeated. As a result, the tactile presentation touch panel 400 can detect the position of the tactile presentation knob 3 and present the tactile sensation according to the position of the tactile presentation knob 3 and the display screen.

FIG. 33 is a schematic diagram showing the formation of capacitance in the tactile presentation touch display 1 during the touch detection period P1 (see FIG. 32). In the touch detection period P1, a capacitance _CND is formed between the indicator 2 and the detection electrode 203. During this period, the potentials of all the tactile electrodes 102 are in a floating state. This prevents the tactile electrode 102 from functioning as a shield. Therefore, the sensitivity of touch detection can be increased.

FIG. 34 is a schematic diagram showing the formation of capacitance in the tactile presentation touch display 1 during the tactile presentation signal application period P5 (see FIG. 32). During the tactile presentation signal application period P5, the potentials of the excitation electrode 202 and the detection electrode 203 of the touch panel 200 may be in a floating state. As a result, it is possible to suppress the influence of the capacitance formation by the excitation electrode 202 and the detection electrode 203 on the capacitance _CNE. Alternatively, the potentials of the excitation electrode 202 and the detection electrode 203 of the touch panel 200 may be substantially constant, and for example, the excitation electrode 202 and the detection electrode 203 may be connected to the ground potential with low impedance. Thereby, the excitation electrode 202 and the detection electrode 203 can function as a shield between the tactile electrode 102 and the display panel 300. Therefore, it is possible to suppress the generation of noise in the display panel 300 due to the high voltage signal applied to the tactile electrode 102. Therefore, it is possible to prevent display defects due to noise. On the contrary, the generation of noise on the tactile electrode 102 due to the display panel 300 is suppressed. When a tactile presentation signal is applied to the tactile electrode 102, the conductive elastic portion 6 forms a electrostatic capacity with the tactile electrode 102, and the tactile electrode is on a surface of the conductive elastic portion 6 in contact with the dielectric layer 106. A charge having a potential opposite to the voltage of 102 is accumulated, and an electrostatic force is generated between the conductive elastic portion 6 and the dielectric layer 106. As a result, the frictional force between the conductive elastic portion 6 and the dielectric layer 106 changes, and the torque of the knob changes when the tactile presentation knob 3 is rotated due to the change in the frictional force, and the tactile presentation knob 3 is used. It feels like an operation when rotated.

When the floating state is used, both the excitation electrode 202 and the detection electrode 203 may be in the floating state, or one of them may be in the floating state. Further, when a constant potential is used, both the excitation electrode 202 and the detection electrode 203 may be set to a constant potential, or one may be set to a constant potential. One of the excitation electrode 202 and the detection electrode 203 may be in a floating state, and the other may be in a constant potential. When the distances between the excitation electrode 202 and the detection electrode 203 and the tactile electrode 102 are different, the one closer to the tactile electrode 102 of the excitation electrode 202 and the detection electrode 203 is in a floating state, and the one farther away is a constant potential. May be done.

In the example shown in FIG. 28, the touch coordinate data is sent from the touch detection circuit 210 to the voltage supply circuit 110, but as a modification, the charge detection result information is sent from the charge detection circuit 212 to the voltage supply circuit 110. May be done. In this case, the tactile presentation control circuit 114 determines the presence or absence of touch and calculates the touch coordinates using the information of the charge detection result.

When changing the position of placing the tactile presentation knob 3 on the tactile presentation panel 100 during or for each operation, the bottom surface portion 15 may be fixed in close contact with the tactile presentation panel 100 on the surface. Further, when the position where the tactile presentation knob 3 is placed on the tactile presentation panel 100 is not changed during or for each operation (when the position of the tactile presentation knob 3 is fixed and used), the bottom surface portion 15 is used as the tactile presentation panel 100. It may be fixed by adhering it on the adhesive portion 17 with an adhesive portion 17.

<Suppression of charge accumulation in the conductive elastic part>
FIG. 35 is an image diagram schematically showing the movement of electric charges when the electric charges accumulated in the conductive elastic portion 6 when a voltage signal is applied are grounded via the indicator 2. FIG. 36 shows the transfer of electric charge accumulated in the conductive elastic portion 6 when the tactile presentation knob 3 is grounded and connected to a part of the tactile electrodes 102 that the tactile presentation knob 3 is in contact with via the dielectric layer 106 when a voltage signal is applied. It is an image diagram schematically shown. Since the conductive elastic portion 6 is made by mixing conductive carbon black or metal particles with an insulating resin, it has a relatively high resistance and tends to accumulate electric charges. When the electric charge is accumulated in the conductive elastic portion 6, the electrostatic force between the conductive elastic portion 6 and the tactile electrode 102 does not change due to the voltage signal, and the tactile strength is lowered. When the surface of the conductive elastic portion 6 and the rotating portion 4 are electrically connected, when the indicator 2 comes into contact with the rotating portion 4, it is grounded via the indicator 2 and is accumulated in the conductive elastic portion 6. The charged charge is released, and the accumulation of charge can be suppressed.

When the resistance of the conductive elastic portion 6 is high, it is difficult for the electric charge to move in the conductive elastic portion 6, and the electric charge cannot be sufficiently released only by releasing the electric charge via the indicator 2 as described above. In that case, at least one of the conductive elastic portions 6 divided into two or more when a voltage signal is applied forms a capacitance with the tactile electrode 102, and at least one of them is connected to the ground. By driving the tactile electrode 102 so as to be connected to the tactile electrode 102 connected to the tactile electrode 102 (see FIG. 37 described later) via the dielectric layer 106, the electric charge accumulated in the conductive elastic portion 6 is directly transferred to the dielectric layer 106. By releasing the electric charge to the tactile electrode 102 via the electric charge, the accumulation of electric charge is prevented. The tactile electrode 102 connected to the charge discharging unit 115 does not need to be fixed, and may be driven by switching between the application of the voltage signal and the connection to the charge discharging unit 115 in the same tactile electrode 102, and the voltage signal is applied. The tactile electrode 102 to be connected to the tactile electrode 102 and the tactile electrode 102 connected to the charge discharging unit 115 may be alternately arranged. However, no electrostatic force is generated on the tactile electrode 102 connected to the charge discharging unit 115. Therefore, in order to prevent deterioration of the tactile sensation, the number of the tactile electrodes 102 to which the voltage signal is applied is larger than the number of the tactile electrodes 102 connected to the charge discharging unit 115, or is connected to the charge discharging unit 115. The effective area of the conductive elastic portion 6 that generates an electrostatic force between the tactile electrode 102 and the tactile electrode 102 by making the time shorter than the time for applying the voltage signal forms a capacity with the charge discharging portion 115. It is preferable that the area is larger than the effective area of the conductive elastic portion 6.

In FIG. 37, at least one of the conductive elastic portions 6 divided into two or more as shown in FIG. 36 forms a capacitance with the tactile electrode 102, and at least one is connected to the ground with the tactile electrode 102 and the dielectric layer. It is a block diagram which shows the structure in the case of driving a tactile electrode 102 so that it may be connected via 106. In the determination period P4 (see FIG. 32), the tactile presentation control circuit 114 determines the position where the tactile presentation knob 3 is placed from the touch coordinate data, determines the tactile presentation area, and divides the area into two or more. Then, the area for inputting the tactile presentation signal and the area for connecting to the GND are determined.

The tactile presentation control circuit 114 selects the tactile presentation signal waveform corresponding to the coordinates of the display screen and the tactile presentation knob 3 based on the input from the tactile presentation condition conversion circuit 120. The "tactual sense signal waveform" is intended to define the respective waveforms of the voltage signals V _a and the voltage signal V _b. Note the difference in waveform between the voltage signal V _a and the voltage signal V _b is typically a difference in frequency. The tactile presentation signal waveform is set inside or outside the tactile presentation control circuit 114. The type of the tactile presentation signal waveform may be one or more. When there is only one type of tactile presentation signal waveform, the process of selecting the tactile presentation signal waveform is not necessary. When there is more than one type of tactile presentation signal waveform, the type of tactile presentation signal waveform is selected based on the input from the tactile formation condition conversion circuit 120.

Next, during the tactile presentation signal application period P5 (see FIG. 32), the tactile presentation control circuit 114 generates a tactile presentation signal with the tactile presentation signal waveform. Further, the switch 40 connected to the tactile electrode 102 in the region where the tactile presentation signal of the switch circuit 112 is input is connected to the tactile presentation voltage generation circuit 113 and is connected to the tactile electrode 102 in the region connected to GND. The switch 40 is connected to GND. The switch 40 connected to the tactile electrode 102 in the region where the tactile presentation signal is not input connects to GND or leaves the tactile electrode 102 floating without turning on the switch 40. As a result, a signal is applied to the tactile electrode 102, so that the tactile sensation is presented. In the example of FIG. 24, an AC signal having an H level (high level) and an L level (low level) is applied to the tactile electrode 102. The haptic electrode 102 is charged at a high voltage of the positive electrode, typically plus a few tens of volts, during the H level period, discharged during the period of 0 level, and has a high voltage of the negative electrode, typically negative at the L level. It is charged with several tens of volts. The generation cycle and generation period of the pulse signal can be appropriately set based on the input from the tactile formation condition conversion circuit 120.

After the tactile presentation signal application period P5, the process returns to the touch detection period P1. As a result, the above-mentioned operation is repeated. As a result, the tactile presentation touch panel 400 can detect the position of the tactile presentation knob 3 and present the tactile sensation according to the position of the tactile presentation knob 3 and the display screen.

In the first embodiment, the GND terminal is used as the charge discharging unit 115, but other configurations may be used as long as the charge accumulated in the conductive elastic unit 6 can be discharged. For example, depending on the conductivity of the electric charge accumulated in the conductive elastic portion 6, a positive voltage or a negative voltage that efficiently discharges the electric charge may be applied instead of the GND terminal.

In the present disclosure, in the above-mentioned tactile presentation signal application period P5, the rotation operation of the tactile presentation knob 3 is stopped for an arbitrary period by changing the waveform of the voltage signal, the time when the voltage signal is applied, and the signal formation cycle. , The operable area that could not be presented by the conventional tactile presentation knob, and the neutral position as the operation reference are presented. Specific examples of these will be described later.

<Differences between the electrode structure of the tactile presentation screen and the electrode structure of the touch screen>
As a preferable condition for the tactile electrode 102, firstly, a configuration is desired in which the indicator 2 can be in contact with the tactile electrode 102 without using a member other than the dielectric layer 106. Therefore, it is preferable that the tactile electrode 102 coated on the dielectric layer 106 is arranged on the outermost surface of the tactile presentation touch panel 400.

Second, the closer the distance between the indicator 2 and the tactile electrode 102, the greater the tactile sensation can be generated. From this viewpoint, the thickness of the dielectric layer 106 is preferably small, and the dielectric constant of the dielectric layer 106 is preferably large.

_{Thirdly, it is desired that the tactile electrodes 102 are densely present in order to increase the capacitance CNE} (see FIG. 34) when the tactile sensation is generated, while when the touch position is detected (see FIG. 32), it is desired. so as not to inhibit the formation of an electrostatic capacitance C _ND, the capacitance C _E between the tactile electrode _102, i.e. the inter-electrode capacitance is small is preferred.

When the size of the tactile presentation touch panel 400 is larger than that of the tactile presentation knob 3 and the area where the tactile presentation knob 3 is not placed is used as a touch panel that does not present the tactile sensation, when the indicator 2 is not in contact with the tactile presentation knob 3, the tactile sensation The operation timing (see FIG. 30) when the indicator 2 is not in contact with the tactile presentation knob 3 on the entire surface of the presentation touch panel 400 is repeated. When touch is detected in an area used as a touch panel that does not present tactile sensation, the touch position is calculated and output. When the indicator 2 comes into contact with the tactile presentation knob 3, the touch detection in the area where the tactile presentation knob 3 is not placed is stopped, and only the area where the tactile presentation knob 3 is placed is set to the tactile presentation knob 3 as described above. It operates at the operation timing when the indicator 2 is in contact (see FIG. 32).

When the area where the tactile presentation knob 3 is not placed is used as a touch panel for tactile presentation, when the indicator 2 is not in contact with the tactile presentation knob 3, the entire surface of the tactile presentation touch panel 400 is exposed to the tactile presentation knob 3. Repeats the operation timing (see FIG. 30) when they are not in contact with each other. When the touch is detected in the area used as the touch panel for tactile presentation, the operation is performed at the operation timing when the indicator 2 is in contact with the tactile presentation knob 3 as described above (see FIG. 32). When the indicator 2 comes into contact with the tactile presentation knob 3, the touch detection in the area where the tactile presentation knob 3 is not placed is stopped, and only the area where the tactile presentation knob 3 is placed is set to the tactile presentation knob 3 as described above. It operates at the operation timing when the indicator 2 is in contact (see FIG. 32).

As a preferred condition for the excitation electrode 202 and the detection electrode 203, firstly, in order to secure the sensitivity and linearity of the touch position detection, a matrix structure capable of accurately identifying the touch position is required. Second, the pointer 2 and the detection order and the electrode 203 detects the touch position by the electrostatic capacitance C _ND formed through a tactile sense presentation screen 150, the excitation electrode 202, as the electric field spreads in the lateral direction detection electrode 203 It is necessary to provide a predetermined distance (several hundred μm or more and several mm or less) between the two.

As described above, there is a difference between the preferable conditions of the tactile electrode 102 and the preferable conditions of the excitation electrode 202 and the detection electrode 203. In order to optimize both conditions, it is not desirable to apply similar structures to them.

<Details of lead wiring layer>
Specifically, the lead-out wiring layer 105 (FIG. 15) of the tactile presentation screen 150 has the lead-out wiring layers Ld (1) to Ld (j) and the lead-out wiring layers Lu (1) to Lu (j). .. Each of the lead-out wiring layers Ld (k) and Lu (k) is connected to the k-th tactile electrode 102, where k is any integer from the numbers 1 to j. Each of the lead wiring layers Ld (k) and Lu (k) is connected to one end and the other end in the extending direction of one tactile electrode 102.

The wiring resistance of each of the tactile electrodes 102 provided on the tactile presentation screen 150 is preferably high, for example, 104Ω or more, from the viewpoint of not hindering the touch detection by the touch screen 250. When the wiring resistance is high as described above, the propagation delay of the voltage signal in the wiring layer is likely to occur. As described above, the propagation delay can be suppressed by connecting the lead-out wiring layer 105 to each of one end and the other end of the tactile electrode 102.

The lead-out wiring layers Ld (1) to Ld (j) are arranged outside the tactile presentation area, and the tactile presentation panel terminals are connected to the corresponding electrodes in order from the one closest to the center of the arrangement of the tactile presentation panel terminal portions 107. It extends so that the shortest distance can be obtained from the portion 107. The tactile presentation panel terminal portion 107 is arranged near the center of the long side along the long side of the transparent insulating substrate 101. The lead-out wiring layers Ld (1) to Ld (j) are arranged as closely as possible while ensuring mutual insulation. The lead-out wiring layers Lu (1) to Lu (j) are similarly arranged outside the region occupied by the lead-out wiring layers Ld (1) to Ld (j). With such an arrangement, the area of the outer portion of the transparent insulating substrate 101 outside the tactile presentation area can be suppressed.

The lead-out wiring layer 105, specifically, the lead-out wiring layers Ld (1) to Ld (j) and the lead-out wiring layers Lu (1) to Lu (j) are a metal single layer film, or a metal single layer and a non-metal single layer. It is preferable that it is composed of any of the laminated films of. When the laminated film has a lower layer and an upper layer covering the lower layer, the upper layer may have a function as a protective layer of the lower layer. For example, the upper layer as a protective layer may protect the lower layer from etchants in the etching process used in the manufacture of the tactile presentation screen 150. Alternatively, the upper layer may function as a cap layer to prevent corrosion of the lower layer during the manufacture or use of the tactile presentation screen 150. If the material of the lower layer is a material having better adhesion to the transparent insulating substrate 101 than the material of the upper layer, it is possible to suppress the occurrence of peeling of the lead-out wiring layer 105.

<Tactile presentation touch panel including display panel>
FIG. 38 is a block diagram showing an outline of the relationship between the display panel, the touch panel, and the tactile presentation panel. The knob movement amount calculation circuit 220 (see FIGS. 28 and 37) tactilely senses information (rotation information) on the movement amount (rotation angle) of the knob based on the coordinates on the touch panel 200 of the knob obtained by the touch detection circuit 210. It is output to the formation condition conversion circuit 120 and the display screen processing circuit 321.

The display screen processing circuit 321 selects a display processing condition corresponding to the movement amount of the knob in the pattern stored in the display processing condition storage device 322 (display condition storage device) in advance. Then, the image information 330 is edited based on the selected display processing conditions, and the image data is transferred to the image signal supply circuit 320.

The tactile formation condition conversion circuit 120 selects a tactile formation condition, for example, a tactile intensity corresponding to the movement amount of the knob in the pattern stored in the tactile formation condition storage device 121 (tactile condition storage device) in advance. Then, the voltage supply circuit 110 supplies a voltage signal to the tactile presentation panel 100 based on the selected tactile formation conditions. Therefore, the display change of the display panel according to the rotation amount of the tactile presentation knob 3 and the tactile sensation obtained from the knob are synchronized.

FIG. 39 is a flowchart illustrating the above tuning process. When the indicator 2 (see FIG. 31) touches the tactile presentation knob 3 (see FIG. 31) (knob touch) or the tactile presentation touch panel 400 is turned on (power ON), the tuning process is started and the tuning process is performed. The position coordinates of the tactile presentation knob 3 on the touch panel 200 at the time of starting or when the initial state setting signal of the tactile presentation knob 3 is given to the tactile presentation touch panel 400 are stored as the initial position (step S0).

When the contact state between the tactile presentation knob 3 and the indicator 2 is determined (step S1) and it is determined that they are not in contact (No), the hand release operation (contact release) is performed. It is determined that this has been done, and the process proceeds to the release operation process (step S14). On the other hand, when it is determined to be in a contact state (in the case of Yes), the position of the tactile presentation knob 3 on the touch panel 200 is detected and the current coordinates are acquired (step S2). Then, the movement amount (rotation angle) of the tactile presentation knob 3 is calculated from the acquired current coordinates and the initial coordinates (step S3), and the presence or absence of movement is determined from the movement amount (step S4).

When it is determined that the tactile presentation knob 3 is not moving (No), it is determined whether the operation in the previous cycle is rotation or translation (step S11), and in the case of translation, translation operation processing (step S15). Move to. On the other hand, in the case of rotation, the angle-tactile conversion table is referred to by the angle of rotation in the previous cycle (step S12), and a signal is applied to the tactile electrode under the condition of forming the same tactile sensation as in the previous cycle (step S8).

If the operation in the previous cycle is rotation, display processing is performed according to the rotation angle in the previous cycle (step S13).

On the other hand, when it is determined in step S4 that the tactile presentation knob 3 is moving (in the case of Yes), it is determined whether or not it is a rotational operation (step S5). This determination is determined by, for example, the method described with reference to FIG. 26, and if it is determined that it is not a rotational operation (in the case of No), it is determined that it is a translational operation, and the process proceeds to the translational operation process (step S15). .. On the other hand, when it is determined to be a rotational operation (in the case of Yes), it is determined whether or not it is the same as the rotational direction in the previous cycle (step S6). Further, in the case of the rotation operation, the display process according to the rotation angle calculated in step S3 is performed (step S9).

When it is determined in step S6 that the rotation direction is the same (in the case of Yes), the same angle-tactile conversion table as in the previous cycle is referred to (step S7), and a signal is applied to the tactile electrode 102 (step S8).

On the other hand, if it is determined in step S6 that the rotation direction is not the same as that in the previous cycle (No), it is assumed that the rotation is in the opposite direction, and the table is changed from the rotation angle for the reverse direction to the tactile sensation. (Step S10), refer to the changed angle-tactile conversion table (step S7), and apply a signal to the tactile electrode 102 (step S8).

After the voltage is applied to the tactile electrode 102, the process proceeds to confirm the contact state between the tactile presentation knob 3 and the indicator 2 in the next cycle.

FIG. 40 is a flowchart showing a hand-release operation process of step S14 shifted from step S1 of FIG. 39. In the hand-release operation process, a matrix relating the process of the rotation amount of the tactile presentation knob 3 and the image process of the display panel 300 as shown in FIG. 41 is prepared and processed in advance. As shown in FIG. 41, as the screen display pattern, a pattern in which the screen display is continuously updated, a pattern in which the screen (current screen) display in the previous cycle is maintained and continuously displayed, and a screen display are initialized ( There is a pattern to display the initial screen).

FIG. 40 is a flowchart showing an example of display processing by operating the tactile presentation knob. In the hand-release operation process shown in FIG. 40, the image processing performed by confirming the processing settings as shown in the matrix described above (step S20), confirming the display screen (step S21), and confirming the knob information (step). S27) The processing of the amount of rotation is performed.

In the image processing, it is determined whether or not the display screen is updated (step S22), and if the display screen is not updated (No), the currently displayed display screen is retained (step S25). On the other hand, when there is an update of the display screen (in the case of Yes), the type of update is determined (step S23).

As shown in FIG. 41, the type of update may be initialization or continuation of update. In the case of initialization, the display screen is updated using the display information of the initial screen (step S26). When the update is continued, the display screen is updated according to the display operation amount according to the current rotation angle (same as the rotation angle of the previous cycle) (step S24).

On the other hand, in the rotation amount processing, as shown in FIG. 41, a process of storing the rotation amount (current rotation amount storage) in order to continue the processing up to the present in the operation of the next tactile presentation knob 3 and the next operation. Since the operation of the tactile presentation knob 3 is performed from the initial state (rotation amount zero), there is a process of initializing the rotation amount and setting it to 0 (rotation amount 0 setting). First, it is determined whether or not the initialization is performed (step). S28).

In step S28, when it is determined to be initialized (in the case of Yes), the rotation amount is initialized at the current position of the tactile presentation knob 3 and set to 0 (step S29). On the other hand, if it is not determined to be initialized (No), the rotation amount is stored (step S30). The translational operation process shown in step S15 of FIG. 39 will be described later with reference to FIG. 80.

As the angle-tactile conversion table used in step S7 of FIG. 39, for example, the rotation direction away from the initial position is the outward direction (first direction), and the rotation direction approaching the initial position is the return direction (second direction). If this is the case, FIG. 42 shows an example of a conversion table (first pattern) from the rotation angle in the outward direction to the tactile sensation. In FIG. 42, the conversion table is shown as a graph of the tactile sensation (operation sensation) with respect to the rotation angle for convenience, and when the tactile sensation presentation knob 3 is near the initial position (near the rotation angle zero), the operation sensation is maintained low. , It is a graph that presents an operation feeling (resistance feeling) proportional to the rotation angle when the movement amount (rotation angle) from the initial position becomes large.

The angle width θ1 for maintaining a low operational feeling and the inclination in the proportional portion can be appropriately set according to the display setting state, the size of the tactile presentation knob 3, and the like. The conversion table shown in FIG. 42 contributes to the prevention of erroneous operation when the rotation angle is increased.

Similarly, FIG. 43 shows another example of the conversion table from the rotation angle in the outward direction to the tactile sensation. The table (graph) shown in FIG. 43 maintains a high operational feeling when the tactile presentation knob 3 is near the initial position (near the rotation angle zero), and rotates when the amount of movement (rotation angle) from the initial position increases. The feeling of operation (feeling of resistance) decreases in proportion to the angle. The angle width θ2 for maintaining a high operational feeling and the inclination in the proportional portion can be appropriately set according to the display setting state, the size of the tactile presentation knob 3, and the like.

It should be noted that the operation feeling at the rotation angle that changes from a high operation feeling to a decrease may be discontinuous. The conversion table shown in FIG. 43 contributes to the prevention of erroneous operation when the indicator 2 comes into contact with the tactile presentation knob 3.

In the conversion table shown in FIG. 42, the increase rate of the operation feeling is constant (proportional), but as shown in FIG. 44, the conversion table may be a conversion table in which the increase rate of the operation feeling decreases as the rotation angle increases. As shown in FIG. 45, the conversion table may be used in which the rate of increase in the feeling of operation increases as the angle of rotation increases.

The conversion table shown in FIG. 44 is effective when the rotation operation range is wide but the rotation range suitable for the display processing operation is narrow, and the conversion table shown in FIG. 45 is suitable for the display processing operation. It is effective when the rotation range is wide. In addition, in FIG. 44 and FIG. 45, it is shown with an angle width θ1 = 0.

Further, another example of the conversion table is shown in FIG. The table (graph) shown in FIG. 46 is a table in which the operation feeling increases up to a predetermined rotation angle θ3, the operation feeling greatly decreases when the rotation angle θ3 is exceeded, and the operation feeling does not change thereafter. It is effective when it is recognized that the operation range has been exceeded and the signal strength for imparting an operation feeling becomes excessive in the area beyond the operation range to prevent the tactile presentation touch panel from being damaged. In FIG. 46, the relationship between the rotation angle up to the rotation angle θ3 and the feeling of operation may be as shown in FIG. 42 or FIG. 45.

The addition of the operational feeling by the conversion table shown in FIGS. 42 to 45 is linked to the display operation of the display panel, and is represented by, for example, a graph of the rotation angle and the display processing amount as shown in FIG. 47. In the graph shown in FIG. 47, the display processing amount increases or decreases as the rotation angle increases or decreases. In this way, since the operation of the tactile presentation knob 3 is linked with the operation feeling and the display state, it is possible to suppress an erroneous operation.

The addition of the operational feeling by the conversion table shown in FIG. 46 is linked to the display operation of the display panel, and may adopt the relationship shown in FIGS. 48 and 49, for example. In the case of the graph shown in FIG. 48, the rotation angle and the display processing amount are synchronized up to a predetermined rotation angle θ3, and when the rotation angle θ3 is exceeded, the display processing amount is fixed. When indicating the order of the icons (items) arranged in order (hereinafter referred to as the list), even if the rotation operation is performed beyond the last icon in the list (the first icon when the rotation angle is -θ3), it is the last. It corresponds to the interlocking of the position (coordinate) information of the data whose range is fixed such as fixed by the icon of. In the case of the graph shown in FIG. 49, the rotation angle and the display processing amount are synchronized up to the predetermined rotation angle θ3, and when the predetermined rotation angle θ3 is exceeded, the display processing amount becomes zero. Therefore, as the display processing amount, for example, in an operation of repeatedly displaying a list (icons arranged in an arbitrary order, etc.), the speed at which the current icon changes to the next icon or the speed at which the list is repeated (hereinafter referred to as feed speed). ), It corresponds to the movement speed information of the display data such as setting the feed speed to zero when the rotation operation exceeding the set feed speed is performed. It is possible to obtain operation invalidation information from both the visual sense and the tactile sense when the operator operates beyond the limit.

FIG. 50 shows an example of a conversion table (second pattern) in the case where the rotation in the outward direction is changed to the rotation in the return direction by the conversion table shown in FIG. 42. In FIG. 50, the operation feeling (first tactile intensity) is reduced at the rotation angle θ4 switched from the outward path to the return path, and the operation feeling increases as the tactile presentation knob 3 is returned to the initial position (angle = zero). It is a graph that does. Therefore, it is possible to recognize from the tactile presentation knob 3 that the initial position has been approached.

Similarly, the conversion table shown in FIG. 50 can be applied when the rotation in the outward direction is changed to the rotation in the return direction by the conversion table shown in FIGS. 44 and 45.

Further, FIG. 51 shows another example of the conversion table in the case where the rotation in the outward direction changes to the rotation in the return direction. In FIG. 51, after the operation feeling is reduced to the preset operation feeling at the rotation angle θ4 switched from the outward path to the return path, the preset operation feeling continues until the initial position, and the operation feeling preset at the initial position (the first). It is a graph that presents the tactile strength of 2. It is an effective conversion table for smooth operation up to the initial position.

Similarly, FIG. 52 shows another example of the conversion table when the rotation in the outward direction changes to the rotation in the return direction. FIG. 52 is a graph in which the increase rate of the operation feeling increases as the rotation angle approaches zero (initial position) after the rotation angle θ4 switching from the outward path to the return path decreases to a preset operation feeling. It is an effective conversion table when the operation is smoothly performed up to the vicinity of the initial position and it is detected that the initial position is approached in the vicinity of the initial position.

FIG. 53 shows an example of the conversion table in which the end of the operation range in the conversion table shown in FIG. 43 and the rotation angle in the conversion table shown in FIG. 46 change from the rotation angle exceeding the rotation angle θ3 to the rotation in the return direction. FIG. 53 is a graph in which the operation feeling at the time of switching continues up to the initial position, and the sensed operation feeling preset in the initial position is presented. In addition, when corresponding to the conversion table shown in FIG. 46, the operation feeling is left as zero.

Further, the operation feeling when returning to the initial position may be changed depending on the rotation angle as shown in FIG. 50 or FIG. 52.

FIGS. 54 and 55 show examples of the operation feeling converted in the conversion table and the voltage application conditions to the tactile electrode 102. The left side of FIG. 54 shows a graph of the tactile sensation imparting signal intensity for the tactile sensation (operation sensation), and the left side of FIG. 55 shows the graph of the tactile sensation imparting signal application time for the tactile sensation (operation sensation). Shows a waveform diagram of a tactile sensation imparting signal.

In FIG. 54, the maximum value (maximum amplitude) of the tactile signal voltage applied as shown in the waveform diagram is increased in accordance with the improvement of the operation feeling. The tactile sensation can be clearly changed by changing the applied voltage of the applied tactile signal.

On the other hand, in FIG. 55, as shown in the waveform diagram, the time for applying the tactile signal is increased in accordance with the improvement of the operation feeling. The tactile sensation can be clearly changed by changing the application time of the tactile signal to be applied.

In addition, in FIG. 54, the relationship between the operation feeling and the signal strength is represented as a pattern having a specific inclination with a specific signal strength as an intercept, and in FIG. 55, the relationship between the operation feeling and the signal application time has a specific application time as an intercept. Although represented as a pattern with a specific tilt, the section and tilt can be appropriately selected depending on the state of the tactile presentation panel 100, the tactile presentation knob 3, and the indicator 2. Further, as shown by the solid line in FIG. 56, the pattern may be a pattern in which the amount of change in the signal condition decreases as the operation feeling increases, or as shown by the broken line, the amount of change in the signal condition increases as the operation feeling increases. It may be an increasing pattern.

<Other application examples>
In the above description, the image to be visually recognized is displayed on the display panel 300 incorporated in the tactile presentation touch panel 400, but as shown in FIG. 57, the display display 500 installed separately from the tactile presentation touch panel 400. An image different from the display panel 300, such as map information, may be displayed, and the display may be linked to the operation of the tactile presentation knob 3 arranged on the tactile presentation touch panel 400. Further, a display 501 may be provided in which an area in which information is projected on the windshield by a projection method or the like is separately installed. Thereby, the use of the tactile presentation knob 3 can be expanded.

<Information displayed>
The image information 330 in the block diagram of FIG. 38 includes indoor environment setting values such as icon list, temperature, humidity, and volume, location, area, facility name, TV broadcasting station name, radio broadcasting station name and broadcasting frequency, music, and video. Examples include titles, news, website names, character lists such as telephone books, map information (2D and 3D), route information, dramas, movies, animations, news, and video information such as recordings.

As the editing process of the image information 330 of the display screen processing circuit 321, the position of the display list is changed, the list is displayed according to the update speed of the display list, the map information is moved up and down left and right, and the map information is moved up and down left and right. Map display according to, map information enlargement / reduction display, map information display according to the position of the route trace, stereoscopic display according to the amount of visual field rotation in the 3D map, stereoscopic display according to the speed setting of the visual field rotation, image setting Display at the time of time axis movement according to (skip), display according to the setting of the time axis movement speed of the image (fast forward, fast rewind), and the like can be mentioned.

<Effect>
According to the first embodiment, when the user operates the tactile presentation knob 3 on the tactile presentation touch panel 400, the operation feeling and the operation amount of the tactile presentation knob 3 are presented to the user and used. Intuitive operation by the tactile sensation of a person is possible, and the operation feeling of the dial knob is easy to use. Therefore, the operation accuracy and the certainty of the operation based on the tactile sensation can be obtained.

Further, the display is updated according to the operation amount of the tactile presentation knob 3, so that a feeling of fulfillment of the operation can be further obtained.

In addition, by appropriately setting the rotation amount and operation feeling conversion table, malfunction prevention was performed at the time of touching the tactile presentation knob 3 and at the start of operation, the rotation setting range was clarified, and the rotation operation was performed outside the rotation setting range. The operability of the tactile presentation knob 3 is improved by disabling the processing in the case and giving a feeling of return to the initial position.

In addition, since the tactile sensation is electrostatically presented to the user, the tactile sensation can be presented with high accuracy.

<Embodiment 2>
The second embodiment has a configuration in which the information on the amount of movement of the knob in the first embodiment is replaced with the rotation speed from the rotation angle. Therefore, the tactile presentation touch panel 400, the tactile presentation knob 3, and the like are structurally the same, and overlapping description will be omitted.

The display change of the display panel according to the rotation amount of the tactile presentation knob 3 and the tactile synchronization process obtained from the knob will be described with reference to the flowchart shown in FIG. 58.

In FIG. 58, the tuning process is started when the indicator 2 (see FIG. 31) touches the tactile presentation knob 3 (see FIG. 31) or the tactile presentation touch panel 400 is turned on (power ON), and the tuning process is started. The position coordinates of the tactile presentation knob 3 on the touch panel 200 at the time when the tactile presentation knob 3 is given the initial state signal of the tactile presentation knob 3 are stored as the initial position (step S40).

When the contact state between the tactile presentation knob 3 and the indicator 2 is determined in a predetermined cycle (step S41) and it is determined that they are not in contact (No), it is determined that the hand release operation has been performed. The process proceeds to the release operation process (step S53). On the other hand, when it is determined to be in a contact state (in the case of Yes), the position of the tactile presentation knob 3 on the touch panel 200 is detected and the current coordinates are acquired (step S42). Then, the movement amount (rotational speed) of the tactile presentation knob 3 is calculated from the acquired current coordinates and the initial coordinates (step S43), and the presence or absence of movement is determined from the movement amount (step S44).

When it is determined that the tactile presentation knob 3 is not moving (No), it is determined whether the operation in the previous cycle is rotation or translation (step S52), and in the case of translation, translation operation processing (step S54). Move to. On the other hand, in the case of rotation, the process proceeds to confirm the contact state between the tactile presentation knob 3 and the indicator 2 in the next cycle.

On the other hand, when it is determined in step S44 that the tactile presentation knob 3 is moving (in the case of Yes), it is determined whether or not it is a rotational operation (step S45). This determination is determined by, for example, the method described with reference to FIG. 26, and if it is determined that it is not a rotational operation (in the case of No), it is determined that it is a translational operation, and the process proceeds to the translational operation process (step S54). .. When the tactile presentation knob 3 is moving, the initial position in the next cycle is replaced with the current position of the tactile presentation knob 3, and the rotation speed in the next cycle is calculated.

When it is determined in step S45 that the rotational operation is performed (in the case of Yes), it is determined whether or not the direction is the same as the rotational acceleration direction in the previous cycle (step S46). When it is determined that the rotation acceleration direction is the same (in the case of Yes), the same speed-tactile conversion table as in the previous cycle is referred to (step S47), and a signal is applied to the tactile electrode 102 (step S48). Further, in the case of the rotation operation, the display process according to the rotation speed calculated in step S43 is performed (step S50).

As the speed-tactile conversion table used in step S47, for example, the direction of accelerating the rotation of the tactile presentation knob 3 is the acceleration direction (first direction), and the direction of stopping the rotation of the tactile presentation knob 3 is the stop direction. When (second direction) is set, it becomes a conversion table (first pattern) from the rotation speed in the acceleration direction to the tactile sensation.

On the other hand, when it is determined in step S46 that the direction is not the same as the rotation acceleration direction in the previous cycle (No), it is assumed that the vehicle is rotating in the stop direction, and the rotation speed for the deceleration direction is converted to tactile sensation. The second pattern) is changed (step S51), the changed speed-tactile conversion table is referred to (step S47), and a signal is applied to the tactile electrode 102 (step S48).

After the voltage is applied to the tactile electrode 102, the process proceeds to confirm the contact state between the tactile presentation knob 3 and the indicator 2 in the next cycle.

In the first embodiment, since the rotation angle of the tactile presentation knob 3 is used as the information of the movement amount, the operation feeling and the display screen are updated even when the tactile presentation knob 3 does not move, but the tactile presentation knob 3 If there is no movement, the rotation speed is zero. Therefore, in the second embodiment, if there is no movement in the determination of movement and it is determined that the operation is rotational in the judgment of the operation in the previous cycle, the tactile sensation is not formed and the display screen is not updated according to the rotation speed, and the next cycle is performed. Will wait.

In addition, since the rotation speed is calculated by comparing the position in the previous cycle with the current position in the movement amount calculation, the position of the tactile presentation knob 3 in the previous cycle is used as the initial position in the cycle after the transition from the initial state. Replace and calculate the rotation speed.

In addition, in order to reduce an error due to the influence of noise or the like, the rotation speed may be calculated using the positions of the tactile presentation knobs 3 in a plurality of cycles. When the position of the tactile presentation knob 3 in a plurality of cycles is used, for example, there is a method of performing a moving average method and a frequency filtering process.

FIG. 59 shows an example of the speed-tactile conversion table used in step S47 of FIG. 58. In FIG. 59, the conversion table is shown as a graph of the tactile sensation (operation feeling) with respect to the rotation speed for convenience. When the rotation speed of the tactile presentation knob 3 is near zero, the operation feeling is maintained high and the rotation speed is high. The graph shows that the feeling of operation (feeling of resistance) decreases in proportion to the rotation speed as the size increases. The rotation speed width ω1 for maintaining a high operational feeling and the inclination in the proportional portion can be appropriately set according to the display setting state, the size of the tactile presentation knob 3, and the like.

A particular noteworthy point in the conversion table of FIG. 59 is to limit the range of the rotation speed because the rotation speed becomes constant when the force for accelerating the rotation of the tactile presentation knob 3 and the resistance due to the operation feeling are balanced. The point is that there is no need to dare to increase the operability.

The operation feeling at the rotation speed, which changes from a high operation feeling to a decrease, may be discontinuous as shown in the conversion table shown in FIG. 60 to prevent a malfunction at the start of rotation and to prevent an operation load during the rotation operation. If you want to lower the speed, for example, it is effective for fast page turning operation of documents.

On the other hand, when the rotation speed decreases, it is not necessary to return to the initial position as in the conversion table shown in FIG. 61, so that it is not necessary to form a different operation feeling in the vicinity of the rotation speed zero.

As described above, the conversion table between the rotation speed and the operation feeling in the second embodiment is different from that of the first embodiment, but the relationship between the rotation speed and the display processing amount in the second embodiment is shown in FIG. It is represented by a graph of the rotation speed and the display processing amount (scrolling speed) shown, and has the same pattern as the graph of the rotation angle and the display processing amount shown in FIG. 47. For example, in a game operation scene, when the continuous striking speed changes according to the rotation speed, or when the movement speed of the characters changes from walking to running, for example, slow playback or fast-forward playback is played in the video viewing scene. By using it when the speed changes according to the rotation speed, it leads to a sense of unity between the operation and the display screen.

FIGS. 63 to 65 show examples of the operation feeling converted in the conversion table and the voltage application conditions to the tactile electrode 102. The left side of FIG. 63 shows a graph of the tactile sensation imparting signal intensity for the tactile sensation (operation sensation), the left side of FIG. 64 shows the graph of the tactile sensation imparting signal application time for the tactile sensation (operation sensation), and the left side of FIG. The graph of the tactile sensation giving signal cycle with respect to (operation feeling) is shown, and the waveform diagram of the tactile sensation giving signal is shown on the right side of each figure.

In FIG. 63, the maximum value of the tactile signal voltage applied as shown in the waveform diagram is increased according to the improvement of the operation feeling, and in FIG. 64, the time for applying the tactile signal as shown in the waveform diagram is the operation feeling. The method of forming the difference in tactile sensation is the same as that of the first embodiment.

On the other hand, in FIG. 65, as shown in the waveform diagram, the operation feeling is reduced by lengthening the output cycle of the applied voltage that forms the tactile sensation. The tactile sensation can be clearly changed by changing the period between the applications of the tactile signals to be applied.

<Effect>
According to the second embodiment, when the user operates the tactile presentation knob 3 on the tactile presentation touch panel 400, the operation feeling and the tactile sensation of the operation amount of the tactile presentation knob 3 are presented to the user and rotated. By appropriately setting the conversion table for the amount and the feeling of operation, it is possible to obtain the certainty of the operation by preventing the malfunction at the time when the tactile presentation knob 3 is touched and at the start of the operation. Further, the display is updated according to the operation amount of the tactile presentation knob 3, so that a feeling of fulfillment of the operation can be further obtained.

<Effect of combined rotation speed>
In the second embodiment, the configuration in which the information on the knob movement amount of the first embodiment is replaced with the rotation speed has been described, but the rotation angle and the rotation speed of the first embodiment and the second embodiment have been described. You may use both of them. In that case, for example, the song name in the album of the song is fed by the rotation angle, and the rotation angle is processed by alternately selecting the song name feed and the album feed by the operation of suddenly increasing the rotation speed to a predetermined speed or higher. As a result, different tactile sensations can be presented depending on how the tactile sensation presentation knob is operated, and a sense of fulfillment of the operation can be obtained.

<Embodiment 3>
FIG. 66 is a block diagram showing an outline of the relationship between the display panel, the touch panel, the tactile presentation panel, and the moving body in the third embodiment. Since the relationship between the display panel, the touch panel, and the tactile presentation panel is the same as that in the first embodiment, the description thereof will be omitted, and different parts will be described.

Information on the movement amount (rotation angle) of the knob is output to the drive supply control circuit 611 (drive control circuit) in addition to the tactile formation condition conversion circuit 120 and the display screen processing circuit 321.

The drive supply control circuit 611 selects the drive supply condition corresponding to the movement amount of the knob in the pattern stored in the drive control condition storage device 612 in advance, and drives and supplies the drive condition data created based on the selected drive supply condition. Output to device 610. The drive supply device 610 controls the moving state of the moving body 600 based on the driving condition data.

FIG. 67 is a flowchart illustrating the display change of the display panel according to the rotation amount of the tactile presentation knob 3, the tuning process of the tactile sensation obtained from the knob, and the control of the moving body 600 described above. The same steps as those in the flowchart of the first embodiment shown in FIG. 39 are assigned the same step numbers, and duplicate explanations will be omitted.

If it is determined to be a rotation operation in step S5 of FIG. 67, display processing is performed according to the rotation angle calculated in step S3 (step S9), and further, drive control of the moving body 600 according to the rotation angle is performed (step S9). Step S110).

If it is determined to rotate in step S11, display processing is performed according to the rotation angle of the previous cycle (step S13), and further, drive control of the moving body 600 according to the rotation angle of the previous cycle is performed (step). S111).

As described above, in the third embodiment, the operation feeling of the tactile presentation knob 3, the change of the image display, and the drive control of the moving body 600 can be performed according to the rotation angle of the tactile presentation knob 3.

FIG. 68 shows an example of a conversion table from the rotation angle of the tactile presentation knob 3 in the outward direction to the tactile sensation. In the third embodiment, since the moving state of the moving body 600 is controlled, as shown in FIG. 68, in order to prevent malfunction until the rotation angle is up to a predetermined angle θ2 (first rotation angle) near the initial state. It presents a high feeling of operation, and when it exceeds θ2, it is a graph that decreases as the angle of rotation increases.

Similarly, FIG. 69 shows another example of the conversion table from the rotation angle in the outward direction to the tactile sensation. In the table (graph) shown in FIG. 69, the decrease in the operation feeling after the rotation angle exceeds the predetermined angle θ2 near the initial state becomes constant when the rotation angle exceeds the predetermined angle θ5 (second rotation angle). Further, it is a graph in which the operation feeling rapidly increases from a predetermined rotation angle θ6 (third rotation angle) near the end of the operation range toward the rotation angle θ3 at the end of the operation range. This is a pattern that can be applied to an operation such as depressing the accelerator when the moving body 600 is a vehicle or the like.

Similarly, FIG. 70 shows another example of the conversion table from the rotation angle in the outward direction to the tactile sensation. The table (graph) shown in FIG. 70 is a graph in which the operation feeling is greatly reduced when the rotation angle θ3 (fourth rotation angle) at the end of the operation range is exceeded, and the operation feeling does not change thereafter. It is possible to know that the operation range has been exceeded due to the disappearance of the operation feeling.

An example of the conversion table in the case where the rotation in the outward path direction is changed from the rotation in the outward path direction by the conversion table shown in FIG. 68 is shown in FIG. 71, and the rotation in the outward path direction is changed to the rotation in the return path direction by the conversion table shown in FIG. An example of the conversion table in the case is shown in FIG. 72, and an example of the conversion table in the case where the rotation in the outward path direction is changed to the rotation in the inbound path direction by the conversion table shown in FIG. 70 is shown in FIG. 73.

In FIGS. 71 to 73, the operation feeling is set to a low state so that the operation is easy until the initial position is reached, and the pattern gives a clear operation feeling in the initial state in order to recognize that the initial state has been returned. It should be noted that, as in the conversion table of FIG. 52 shown in the first embodiment, the pattern may be a pattern that gives a feeling of operation from the vicinity of the initial state.

Further, in the third embodiment, the addition of the operational feeling is linked to the display operation of the display panel and the drive control amount. Therefore, the addition of the operational feeling by the conversion table shown in FIGS. 68 and 69 is represented by, for example, a graph of the rotation angle and the display processing amount as shown in FIG. 74.

Further, the addition of the operation feeling by the conversion table shown in FIG. 70 is represented by, for example, a graph of the rotation angle and the display processing amount as shown in FIG. 75. When the rotation angle θ3, which is the operation range, is exceeded, the display process also becomes the initial state in conjunction with the disappearance of the operation feeling.

On the other hand, the drive control amount by the conversion table shown in FIGS. 68 and 69 is represented by a graph of the rotation angle and the drive control amount as shown in FIG. 76, for example.

Further, the drive control amount by the conversion table shown in FIG. 70 is represented by, for example, a graph of the drive control amount of the rotation angle and the display processing amount as shown in FIG. 77. When the rotation angle θ3, which is the operation range, is exceeded, the drive control amount also becomes the initial state in conjunction with the disappearance of the operation feeling. The initial state of the drive control amount includes a state in which the mobile body 600 can be safely controlled and operated depending on the drive target.

The moving body controlled in the third embodiment includes an automobile, a railroad vehicle, a ship, and an air vehicle in relation to the driving operation. Robots for agricultural equipment, construction equipment, processing equipment, and medical equipment can be mentioned in relation to the drive operation of incidental tools, and can be used for a wide range of purposes.

Therefore, it is necessary to assign the hand-release operation process, the translational operation process, and the push-in operation process shown in the fourth embodiment described later in the process flow of FIG. 67 to the operation operation and the tool operation, and the allocation information is stored in the drive control condition storage. It is stored in the device 612 (see FIG. 66).

The operations stored as assignments for driving operations of automobiles, etc. include driving force release (accelerator off), braking (brake), gear change shift up, gear change shift down, forward (drive device forward rotation), and reverse. (Drive device reversal), flap-up, flap-down, rotation to the right, rotation to the left.

Since the movements of agricultural equipment, construction equipment, and processing equipment vary widely depending on the application, as a generalization method, the device name, the purpose of use of the equipment, and the operation content are stored in a tree-like list for drive control conditions. It is stored in the device 612. When the tactile presentation touch panel is installed on the device, the corresponding device, application, and operation are selected from the list, and the correspondence between the operation of the device and the operation of the tactile presentation knob 3 is set, so that the operation amount of the tactile presentation knob 3 is set. The conversion table of (rotation angle, translational movement amount) and the operation content of the device can be used from the drive control condition storage device 612.

In the third embodiment, the movement amount of the knob has been described as the rotation angle, but as in the second embodiment, the movement amount of the knob may be the rotation speed, and both the rotation angle and the rotation speed may be used. May be used.

In the first to third embodiments, only the tactile presentation knob 3 is shown as the input device. However, as an improvement in the safety of the moving body, for example, when a proximity sensor, a motion sensor, or the like is installed, these A flow may be added in which the danger prediction information from the sensor is input and the alarm screen is displayed, the operation feeling in the acceleration direction is increased, the drive control amount is reduced, and the like by issuing an alarm based on the danger prediction information.

<Effect>
According to the third embodiment, when operating various devices with the tactile presentation knob 3, certainty due to the operation feeling can be obtained and erroneous operation can be prevented. Further, since various operations are stored in advance, the operation panel and the operation lever can be simplified, and the cost in designing and manufacturing the device can be reduced.

<Embodiment 4>
FIG. 78 is a flowchart illustrating the display change of the display panel according to the rotation amount of the tactile presentation knob 3 and the tuning process of the tactile sensation obtained from the knob. Note that, in FIG. 78, operations not related to the fourth embodiment are shown in a simplified manner.

When the indicator 2 (see FIG. 31) touches the tactile presentation knob 3 (see FIG. 31) or the tactile presentation touch panel 400 is turned on (powered on), the tuning process is started, and the tuning process is started. Or, the position coordinates of the tactile presentation knob 3 on the touch panel 200 at the time when the initialization signal of the tactile presentation knob 3 is given to the tactile presentation touch panel 400 is stored as the initial position (step S60).

When the contact state between the tactile presentation knob 3 and the indicator 2 is determined in a predetermined cycle (step S61) and it is determined that they are not in contact (No), it is determined that the hand release operation has been performed. The process proceeds to the release operation process (step S67).

On the other hand, when it is determined that the contact state is reached (in the case of Yes), it is determined whether the operation of pushing the tactile presentation knob 3 is performed (step S62), and when the operation of pushing is not performed (in the case of No), it is determined. The position of the tactile presentation knob 3 on the touch panel 200 is detected and the current coordinates are acquired (step S63). Then, the movement amount (rotation angle) of the tactile presentation knob 3 is calculated from the acquired current coordinates and the initial coordinates (step S64).

On the other hand, when it is determined in step S62 that the operation of pushing the tactile presentation knob 3 is performed (in the case of Yes), the processing performed according to the conversion table of the rotation angle and the display processing amount up to the previous cycle, for example, list display. Stop processing (step S68) is performed so that the update speed setting (scrolling operation) of is set to zero.

After calculating the movement amount of the tactile presentation knob 3 in step S64, it is determined whether or not it is a rotational operation (step S65). This determination is determined by, for example, the method described with reference to FIG. 26, and if it is determined that it is not a rotational operation (in the case of No), it is determined that it is a translational operation, and the process proceeds to the translational operation process (step S69). .. On the other hand, when it is determined to be a rotational operation (in the case of Yes), it is determined whether or not it is the same as the rotational direction in the previous cycle (step S6). Further, in the case of the rotation operation, the rotation angle calculated in step S64 is converted into a display processing amount using the conversion table (step S66).

Regarding the processing performed according to the conversion table of the rotation angle and the display processing amount up to the previous cycle when the operation of pushing the tactile presentation knob 3 is performed, FIGS. 40 and 41 are used in the first embodiment. Among the screen display patterns described, a pattern not selected in the first embodiment may be selected. For example, if "Current rotation angle memory"-"Screen display update continuation" is selected as the operation for the release operation process, even if the push operation process is assigned by selecting "Rotation angle 0 setting"-"Screen display initialization". good.

Further, when the rotation angle and the item position of the display list correspond to each other, the operation of selecting the item of the corresponding list may be performed. For example, in a list in which facility names are arranged in order, facilities corresponding to the angle of rotation are displayed, and the facility displayed by a push operation may be registered in the route guidance as a destination.

Further, when applied to the third embodiment, the operation processing of the device corresponding to the pushing operation stored in the drive control condition storage device 612 (see FIG. 66) is performed.

In the fourth embodiment, the movement amount of the knob has been described as the rotation angle, but as in the second embodiment, the movement amount of the knob may be the rotation speed, and both the rotation angle and the rotation speed may be used. May be used.

<Effect>
According to the fourth embodiment, since the pushing operation can be added to the display operation in addition to the rotation operation, the translation operation, and the hand release operation of the tactile presentation knob 3, the versatility of the tactile presentation knob 3 can be expanded.

<Embodiment 5>
FIG. 79 is a diagram schematically showing the operation of the tactile presentation knob 31 arranged on the tactile presentation touch panel according to the fifth embodiment. As shown in FIG. 79, the tactile presentation knob 31 has a configuration capable of a joystick-like operation in the moving operation, that is, a reciprocating operation of up, down, left, and right without rotation toward the tactile presentation touch panel surface. As a result, in the tactile presentation knob 3 of the first to fourth embodiments, for example, a list in which dozens of song titles are arranged by rotation operation is roughly selected every five titles on the screen in which the target title and the two titles before and after are displayed. In contrast to the screen update (scrolling operation), in the fifth embodiment, the joystick operation of the tactile presentation knob 31 enables fine screen update (display frame advance) in the smallest unit (for each title). This fine screen update in the smallest unit is performed, for example, when the joystick operation for moving the tactile presentation knob 31 upward (+ y direction) is performed. When the joystick operation is performed to move to the next list item and move it downward (-y direction), the display process is such that the item is moved to the previous list item.

FIG. 80 shows a flowchart of the display process by the joystick operation. Since it is a joystick operation, it corresponds to the translational operation processing in the first to fourth embodiments, and corresponds to, for example, the translational operation processing of step S5 or step S15 in FIG. 39 of the first embodiment.

When shifting to translation operation processing, the translation direction and processing time at the time of transition are stored (step S70). Since there is a case where there is no movement from the previous cycle even in the translation operation processing, the presence or absence of movement is determined (step S71), and if there is no movement (No), it is displayed as the translation operation of the previous cycle shown in FIG. 82. The current operation type is determined from the contents of the conversion table of the process (step S77). In the case of a series of reciprocating operations (No), the display screen of the previous cycle, that is, the currently displayed display screen (current screen) is held (step S79). On the other hand, in the case of one-way operation (in the case of Yes), the same display processing as the operation in the previous cycle is set by the movement amount of the previous cycle and the conversion table of the display processing (step S80), and the set display processing is performed. (Step S75).

When it is determined in step S71 that there is a movement (in the case of Yes), the magnitude relationship between the elapsed time t from the previous movement and the predetermined interval t0 is determined, and a series of translation operations or a new translation operation is performed. (Step S72). Then, when it is determined to be a new translational operation (when t> t0), the display processing of the outward movement is set by the conversion table of the movement amount and the display processing as the outward movement (step S78), and the set display processing is performed. (Step S75).

On the other hand, when it is determined in step S72 that a series of translational operations are in progress (when t≤t0), it is determined whether or not the corresponding operation is the same as the movement direction in the previous cycle (step S73). If the movement directions are not the same (No), the display process determined based on the operation type is set (step S76), and the set display process is performed (step S75). When the operation type is one-way operation, the display processing amount is set by the conversion table of the translational movement amount and the display processing amount, as shown in FIGS. 100 and 101. That is, in FIG. 100, the display processing amount changes continuously with the change of the translational movement amount, and in FIG. 101, the display processing amount changes discretely with the change of the translational movement amount. On the other hand, in the case of a series of round-trip operations, the predetermined display processing amount is set only for the cycle reversed from the outward path to the return path, and the display processing amount is set to zero (the display is not updated) in the other cycles.

On the other hand, when the movement direction is the same in step S73 (in the case of Yes), it is determined whether the movement route is the outward route or the return route (step S74), and in the case of the outward route (in the case of Yes), it is based on the operation type. A predetermined display process is set, and the set display process is performed (step S75). When the operation type is one-way operation, the translational movement amount and the display processing amount are set as shown in FIGS. 100 and 101. That is, in FIG. 100, the display processing amount changes continuously with the change of the translational movement amount, and in FIG. 101, the display processing amount changes discretely with the change of the translational movement amount. On the other hand, in the case of a series of round-trip operations, the display processing amount is set to zero (the display is not updated).

On the other hand, when it is determined in step S74 that the return route is (No), the same display processing as when the movement direction is changed is set as the return route operation (step S76), and the set display processing is performed (step S75). ..

FIG. 81 is a diagram schematically showing an example of a series of reciprocating operations of the tactile presentation knob 31. In FIG. 81, as indicated by the arrow, the tactile presentation knob 31 shows a joystick operation that continuously performs a return movement that moves from the outward movement in the direction opposite to the outward movement.

Further, FIG. 82 shows a conversion table between the update of the display screen and the display process and the operation of the tactile presentation knob 31. As shown in FIG. 82, when performing a one-way operation, the display screen and the display process are updated according to the translational movement amount, and in a series of reciprocating operations, only the cycle in which the route inversion occurs is displayed on the display screen and the display. The process will be updated.

FIG. 83 is a flowchart showing an example of display processing by operating the tactile presentation knob. In the translation operation processing as shown in FIG. 80, the translation operation setting is confirmed (step S90), and it is determined whether or not to take over the processing by the conversion table between the rotation angle and the display processing (step S91). Then, when taking over the processing (in the case of Yes), the image processing performed by confirming the display screen (step S100) and the rotation amount processing performed by confirming the knob information (step S102) are performed.

As an example of image processing, as shown in FIG. 101, list display feed in the smallest unit, that is, display frame advance operation of moving and displaying list items arranged in order one by one is performed (step S101). .. On the other hand, regarding the processing of the rotation amount, it is determined whether to initialize or update the rotation angle information based on the preset conditions (step S103). When it is determined to be initialized (in the case of Yes), the rotation angle of the tactile presentation knob 31 at the current position is set to the initial angle (zero) (step S104). On the other hand, when it is determined to be updated (No), the rotation amount corresponding to the list display feed in the minimum unit is added to or subtracted from the rotation amount in the previous cycle to obtain the rotation angle at the current position (step S105). ).

Even when the fine adjustment operation is performed by the translation operation, the update process in step S105 makes it possible to create a continuous feeling of updating the screen display according to the rotation amount in the rotation operation. For example, in the operation of scrolling the map display on the map screen and checking the surrounding terrain, etc., when the minimum scroll amount of the map display by the rotation operation is moved by 200 m, the minimum scroll amount is performed by performing the translation operation. Is moved in units of 10 m (fine adjustment operation), and when the rotation operation is performed again, it is possible to start the movement from the point moved by the fine adjustment operation. The map scale during the rotation operation and the map scale during the translation operation may change according to the minimum scroll unit.

On the other hand, if it is determined in step S91 that the processing by the conversion table between the rotation angle and the display processing is not inherited, it is determined whether or not the movement amount and the contents of the conversion table for the display processing are newly determined (step S92). .. Then, when newly determined (in the case of Yes), the processing menu is displayed (step S95), and the process proceeds to the selection operation in the next cycle. The processing menu is composed of information stored in the display processing condition storage device 322, information newly sent from the outside, and the like.

On the other hand, if it is determined in step S92 that it is not newly determined (No), the display screen is confirmed (step S93), and display processing is performed according to the movement amount and display processing conversion table already determined. Another display screen is displayed (step S94).

Further, the knob information is confirmed (step S96), and the movement information (rotation angle) of the tactile presentation knob 3 is determined whether to retain or initialize the movement information so far (step S97), and it is determined to initialize. If yes (yes), the rotation angle of the tactile presentation knob 31 at the current position is set to the initial angle (zero) (step S98). On the other hand, when it is determined that the initialization is not performed (No), the rotation angle of the previous cycle is stored (step S99).

<Other application examples>
In the above description, the joystick operation has been described using the fine adjustment operation of the list display feed, but it can also be applied to other scenes. For example, when the route trace is performed by the rotation operation on the map information screen, the trace movement distance may be reduced to a predetermined ratio at the time of rotation by changing to the joystick operation. Further, when the list at the time of rotation operation is displayed as a major classification item, the list of minor classification items may be moved by the joystick operation.

On the other hand, as an example of changing the processing, there is an example of changing the trace processing at a point in the middle of tracing to the processing of enlarging / reducing the map information by the joystick operation in the route trace processing by the rotation operation.

<Effect>
According to the fifth embodiment, the joystick operation can be added to the display operation contents in addition to the rotation operation, the translation operation, the hand release operation, and the push operation of the tactile presentation knob, so that the versatility of the tactile presentation knob can be further expanded. can. Further, by allocating the joystick operation for the fine adjustment processing of the rotation operation, it is possible to give an operation with less stress.

<Structure of tactile presentation knob that enables joystick operation>
When performing a joystick-like operation, it is difficult to realize with a tactile presentation knob with a fixed shaft base. The tactile presentation knob 31 of the fifth embodiment has the configuration described below in order to enable a joystick-like operation.

FIG. 84 is a diagram showing an example of the configuration of the tactile presentation knob 31, in which the top view, the side view, and the bottom view are shown in order from the top on the left side of the figure, and the AA line in the bottom view is shown on the right side. A cross-sectional view in the direction indicated by the arrow is shown.

As shown in FIG. 84, since the rotating shaft portion 5a is also movable, it is desirable that the rotating shaft portion 5a does not move during rotation in order to perform a stable rotation operation when rotating the rotating portion 4. Therefore, the static force of the rotating shaft portion 5a when the rotating portion 4 rotates may be larger than the stationary force of the rotating portion 4. That is, the region where the rotation shaft portion 5a is in contact with the tactile presentation panel is arranged outside the region where the rotation portion 4 and the tactile presentation panel are in contact with each other when viewed from the center of rotation. On the other hand, in order to detect an arbitrary position of the rotating unit 4 during the rotation operation, it is more suitable to arrange the position detecting unit 7 at a position far from the center of rotation for calculating the rotation amount, and the position detecting unit 7 is tactile. The configuration is provided near the outer periphery of the presentation knob 31.

The rotating portion 4 is composed of a rotating portion inner shaft portion 30 (first rotating body), a rotating portion side surface 10 (second rotating body), and a rotating portion upper surface plate 12, and the rotating shaft portion 5a is a rotating portion inner shaft portion. It is provided so as to surround 30. A plurality of conductive elastic portions 6 having a fan shape in a plan view are provided on the bottom surface of the inner shaft portion 30 of the rotating portion, and a plurality of shaft structure holding portions having a fan shape in a plan view are provided on the bottom surface of the rotating shaft portion 5a. 17a (first structure holding portion) is provided.

By providing a plurality of position detection units 7, the accuracy of position detection of the tactile presentation knob 31 is improved, and by providing a plurality of shaft structure holding portions 17a, the movement of the tactile presentation knob 31 is not hindered and the tactile presentation is presented. The knob 31 can also be held.

By adopting such a configuration, the tactile presentation knob 31 can be operated with a joystick.

Further, since the rotating shaft portion 5a is removable from the tactile presentation panel, a shaft portion convex portion is formed on the inner wall of the rotating shaft portion 5a so that the rotating shaft portion 5a and the rotating portion 4 do not separate from each other, for example, as shown in FIG. The 31b may have a structure in which a rotating portion convex portion 31a is formed on the outer wall of the rotating portion inner shaft portion 30.

Regarding the clearance c1 between the rotating shaft portion 5a and the rotating portion convex portion 31a and the clearance c2 between the rotating portion inner shaft portion 30 and the shaft portion convex portion 31b, the fixing hole 9 of the tactile presentation knob 3 described in the first embodiment. The inner diameter tolerance of 0 to +0.5 mm is the same range. As a result, the rotating portion 4 can rotate smoothly.

Further, as shown in FIG. 86, a bearing 32 may be provided between the rotating shaft portion 30 and the rotating shaft portion 5a to connect the rotating shaft portion 5a and the rotating portion 4. By adopting the above configuration, rattling due to the gap between the rotating shaft portion 5a and the rotating portion inner shaft portion 30 and mutual frictional force at the time of contact are reduced, so that unintended movement of the rotating shaft portion 5a can be suppressed.

FIG. 87 is a diagram showing another example of the configuration of the tactile presentation knob 31, and the arrangement of the diagram is the same as that of FIG. 84. In FIG. 87, the rotating shaft portion 5a is provided inside the rotating portion inner shaft portion 30, and the shaft portion 14 of the rotating shaft portion 5a is surrounded by the rotating portion inner shaft portion 30. The shaft portion 14 and the fixing base 13 are connected to each other via the elastic member 33. Therefore, the rotating portion 4 can be moved back and forth and left and right. As the type of the elastic member 33, a combination of a coil spring and a flat plate spring is suitable.

A plurality of shaft structure holding portions 17a having a fan-shaped plan view are provided on the bottom surface of the fixed base 13, and a plurality of fan-shaped shaft structure holding portions 17a having a fan-shaped plan view are provided on the bottom surface 130 of the rotating portion outside the shaft structure holding portion 17a. The conductive elastic portion 6 of the above is provided.

When such a configuration is adopted, the conductive elastic portion 6 can be used as the position detecting portion 7, but as shown in FIG. 88, the position detecting portion 7 is the conductive elastic portion 6 on the bottom surface 130 of the rotating portion. A plurality of positions may be provided at positions sandwiched between the two, as far as possible from the center of rotation. By providing the plurality of position detection units 7, the accuracy of detecting the rotation angle is improved.

FIG. 89 is a diagram showing an example of the configuration of the elastic member 33 connecting the shaft portion 14 and the fixing base 13, and is a two-way side view of the state where the shaft portion 14 and the fixing base 13 are connected by the elastic member 33. And a top view.

As shown in FIG. 89, the elastic member 33 has a left / right bending leaf spring 33a (first flat plate spring) and a front / rear bending leaf spring 33b (second flat plate spring), and the rotating portion 4 is front / rear / left / right. Can be moved to. Although FIG. 89 shows an example in which the left and right bending leaf springs 33a are arranged on the shaft portion 14 side and the front and rear bending leaf springs 33b are arranged below the left and right bending leaf springs 33a, they may be arranged upside down.

Further, since the rotating shaft portion 5a is removable from the tactile presentation panel, the shaft portion convex portion 31b is formed on the outer wall of the shaft portion 14 so that the rotating shaft portion 5a and the rotating portion 4 do not separate from each other, for example, as shown in FIG. The inner wall of the rotating portion inner shaft portion 30 may have a structure in which the rotating portion convex portion 31a is formed.

In this case, by configuring the bottom surface of the shaft portion 14 and the bottom surface of the rotating portion inner shaft portion 30 to open by a distance c3, the rotating portion convex portion 31a is on the fixed base 13 side by the operation of the tactile presentation knob 31. It can be prevented from protruding into the portion forming the elastic member 33.

When the shaft portion 14 and the fixing base 13 are connected by the elastic member 33, the shaft portion 14 may come into contact with the rotating portion 4 in a tilted state due to the elastic member 33, and if the shaft portion 14 is tilted, the rotating portion 4 may rotate. It can also interfere. Therefore, as shown in FIG. 91, the shaft portion 34 (second rotating shaft) is provided outside the shaft portion 14 (first rotating shaft), and the rotating portion 4 is provided outside the shaft portion 34. By providing the shaft portion 34, it is possible to suppress the influence when the shaft portion 14 is tilted. A shaft structure holding portion 35 (second structure holding portion) protruding toward the tactile presentation panel side is provided on the outer edge of the bottom surface of the shaft portion 34, which contributes to holding the shaft portion 34.

Further, as shown in FIG. 92, a shaft portion guide 36a (first shaft portion guide) that deforms along the shaft portion 34 when the shaft portion 14 is tilted is provided on the side surface of the shaft portion 14 to provide a shaft. A shaft guide 36b (second shaft guide) may be provided on the inner surface of the portion 34 at a position corresponding to the shaft guide 36a so as to sandwich the shaft guide 36a. The shaft portion guide 36a and the shaft portion guide 36b engage with each other to contribute to the holding of the shaft portion 34.

FIG. 93 is a diagram showing another example of the configuration of the tactile presentation knob 31, in which the top view, the side view, and the bottom view are shown in order from the top on the left side of the figure, and the DD line in the bottom view is shown on the right side. The cross-sectional view in the direction indicated by the arrow is shown.

As shown in FIG. 93, the shaft portion 14 is connected to the fixing base 13, the shaft portion 14 is inserted into the hollow portion of the rotating portion inner shaft portion 30, and has a gap 37 between the shaft portion 14 and the rotating portion inner shaft portion 30. The rotating portion 4 can be moved back and forth and left and right within the range of the gap 37.

In addition, in order to form a feeling of return of the joystick, a suspension may be formed in the gap 37 as shown in FIG. 94. As a suspension, a plurality of elastic members 33 are connected to the side surface of the shaft portion 14, and the tip of the elastic member 33 is in contact with the inner surface of the rotating portion inner shaft portion 30 of the rotating portion 4 during rotation to reduce catching. A portion 38 is provided. Suspensions are provided at at least two places so that the forces of the elastic members 33 are balanced.

Further, as shown in FIG. 95, a plurality of piezoelectric elements 39 are arranged on the side surface of the shaft portion 14, and the voltage information of the piezoelectric elements 39 is used by a motion detection circuit separately provided on the tactile presentation touch panel side. It may be configured to detect the movement in the translational direction. Since the tactile presentation knob 31 is separated from the motion detection circuit provided on the tactile presentation touch panel side, the signal may be transmitted to the motion detection circuit using an electromagnetic field or the like.

FIG. 96 is a diagram showing another example of the configuration of the tactile presentation knob 31, in which the top view, the side view, and the bottom view are shown in order from the top on the left side of the figure, and the EE line in the bottom view is shown on the right side. The cross-sectional view in the direction indicated by the arrow is shown.

As shown in FIG. 96, the shaft portion 14 is connected to the fixing base 13, the shaft portion 14 is inserted into the fixing hole of the rotating portion inner shaft portion 30, and the gap between the shaft portion 14 and the rotating portion inner shaft portion 30. Is narrow, and the front-back and left-right deviations of the rotating portion 4 are small.

As shown in FIG. 96, the bottom surface of the shaft structure holding portion 17a and the bottom surface of the conductive elastic portion 6 are in the same plane as the surface of the tactile presentation panel, but when performing rotation and translation operations, the position detection unit The bottom surface of 7b is provided so as not to come into contact with the surface of the tactile presentation panel. When the pushing operation is performed, the bottom surface of the position detection unit 7b is arranged so as to detect the position of the position detection unit 7b by contacting the surface of the tactile presentation panel. As a result, the pushing operation of the tactile presentation knob 31 can be detected without providing an additional detection unit.

FIG. 97 is a cross-sectional view showing a configuration of a contact portion between the shaft portion 14 and the rotating portion upper surface plate 12 of the rotating portion 4. As shown in FIG. 97, the top of the shaft portion 14 is arcuate, and the rotating portion upper surface plate 12 has a conical shape in which the portion facing the shaft portion 14 has an inclination with the rotation center as the maximum height. ing. When the tactile presentation touch panel is pushed in by deviating from the vertical direction, the rotating portion moves in the horizontal direction as shown by an arrow in FIG. 98, and the shaft portion 14 and the shaft portion 14 of the rotating portion top plate 12 are moved. Due to the shape of the side in contact with the rotating portion 4, the rotating portion 4 is lifted by c4 minutes before moving (indicated by a broken line), and a force in the rotational direction is applied around the contact point between the shaft portion 14 and the upper surface plate 12 of the rotating portion. Tilt slightly, as indicated by the arrow. Due to this slight inclination, the position detection unit 7b comes into contact with the tactile presentation panel, and by detecting the position, the moving direction can be easily detected. Although the shape of the portion of the rotating portion upper surface plate 12 facing the shaft portion 14 has been described in the case of a conical shape, any shape may be used as long as it has an inclination that has the effect of lifting the rotating portion upper surface plate 12.

Although the method of holding the shaft structure holding portion 17a is not described in detail, it is preferable to contact the surface of the tactile presentation touch panel 400 with a strong frictional force. As a method of further increasing the frictional force between the shaft structure holding portion 17a and the surface of the tactile presentation touch panel 400 compared to the combination of materials, a method of using the electrostatic attraction force by the tactile presentation touch panel 400 and a magnet provided on the back surface of the tactile presentation touch panel 400 or A method using a magnetic field attractive force by a coil or the like can be mentioned.

<Embodiment 6>
<Operation invalidity and tactile presentation outside the operation range>
FIG. 102 is a cross-sectional view showing an example of the configuration of the tactile presentation touch display 1. As shown in FIG. 1002, the sixth embodiment is characterized in that the ultrasonic element 60 is installed on the outer peripheral portion of the surface of the transparent insulating substrate 101 opposite to the surface in contact with the tactile presentation knob 3. .. Since other configurations are almost the same as the configurations of the first embodiment, the description thereof will be omitted here.

The frictional force between the tactile presentation knob 3 and the transparent insulating substrate 101 may be controlled by ultrasonic waves. In this case, the wavelength range of the ultrasonic wave is lower than the high frequency region in which an air layer is formed between the tactile presentation knob 3 and the transparent insulating substrate 101 and frictional force is not generated.

It is desirable that the ultrasonic element 60 is installed at a symmetrical position on the outer peripheral portion of the transparent insulating substrate 101. By controlling the vibration timing of the ultrasonic element 60, it is possible to set the position where the vibration on the surface of the transparent insulating substrate 101 resonates to the same position as the designated position 50 of the tactile presentation knob 3.

In this case, it is possible to generate vibrations having the same amplitude with a smaller voltage than when the ultrasonic elements 60 are operating synchronously, which contributes to the overall reduction in power consumption of the tactile presentation touch display 1. can do.

<Effect>
According to the sixth embodiment, a frictional force is generated between the tactile presentation knob 3 and the transparent insulating substrate 101 by vibrating the surface of the transparent insulating substrate 101 using the ultrasonic element 60. Therefore, when the tactile presentation touch display 1 is used outdoors such as at sea, the tactile presentation knob 3 can be used.

<Modification example>
The above-described embodiments 1 to 6 have been described with reference to an example in which the rotation operation is performed around the rotation axis of the knob. It is possible to apply the morphology. Specifically, the knob can be used like a stylus pen, such as not only a straight line slide up / down, left / right, and diagonally, but also a circular slide that draws a circle and a zigzag slide.

In the above-described embodiments 1 to 6, the case where the tactile presentation knob 3 or the tactile presentation knob 31 is used to rotate the knob around the rotation axis has been described, but the present invention is not limited to this. For example, it is possible to apply the first to sixth embodiments even when the tactile presentation knob 3 or the tactile presentation knob 31 is operated by sliding like a slide switch. Specifically, by using the tactile presentation knob 3 or the tactile presentation knob 31 like a stylus pen, it slides not only in a straight line slide up / down, left / right, and diagonally, but also in a circular slide like drawing a circle and in a zigzag manner. It is possible.

In the present disclosure, each embodiment can be freely combined, and each embodiment can be appropriately modified or omitted within the scope of the disclosure.

Although the present disclosure has been described in detail, the above description is exemplary in all embodiments and is not limited thereto. It is understood that a myriad of variants not illustrated can be envisioned without departing from the scope of this disclosure.

The tactile presentation panel according to the present disclosure is a tactile presentation panel in which a tactile presentation knob having a conductive member is placed on an operation surface and a tactile sensation is presented to a user through the tactile presentation knob. A movement amount calculation circuit that calculates the movement amount of the tactile presentation knob from the current coordinates on the tactile presentation panel and the past coordinates of the tactile presentation knob, and the movement amount calculated to the user based on the movement amount. The tactile intensity calculation circuit for calculating the tactile intensity and the tactile presentation circuit for setting the voltage signal waveform based on the tactile intensity are provided, and the movement amount includes at least the rotation speed of the tactile presentation knob and the rotation. depending on the speed Ru changing the sense of operation.

The present disclosure relates to a tactile presentation device and a tactile presentation knob that presents a tactile sensation to a user via a tactile presentation knob.

The present disclosure has been made to solve the above-mentioned problems, and the tactile sensation that can be intuitively operated by the user's tactile sensation and can give an easy-to-use dial knob operation feeling. It is intended to provide a presentation device and a tactile presentation knob.

Tactile sense presentation device according to the present disclosure, touch the feedback supply knob is placed on the operation surface, a tactile sense presentation device for presenting tactile to a user through the tactual sense knob, the tactile sense presentation of the tactile sense presentation knob A movement amount calculation circuit that calculates the movement amount of the tactile presentation knob from the current coordinates on the device and the past coordinates of the tactile presentation knob, and the tactile intensity given to the user based on the movement amount. A tactile intensity calculation circuit for calculating and a tactile presentation circuit for setting a voltage signal waveform based on the tactile intensity are provided, and the movement amount includes at least the rotation speed of the tactile presentation knob and is in accordance with the rotation speed. Change the feeling of operation.

The tactile presentation device according to the present disclosure can be intuitively operated by the user's tactile sensation, and can give an easy-to-use dial knob operation feeling.

Claims (65)

It is a tactile presentation panel in which a tactile presentation knob having a conductive member is placed on an operation surface and a tactile sensation is presented to a user through the tactile presentation knob.
A movement amount calculation circuit that calculates the movement amount of the tactile presentation knob from the current coordinates of the tactile presentation knob on the tactile presentation panel and the past coordinates of the tactile presentation knob.
A tactile strength calculation circuit that calculates the tactile strength given to the user based on the movement amount, and
A tactile presentation circuit that sets a voltage signal waveform based on the tactile intensity is provided.
The tactile presentation panel, wherein the movement amount is at least one of the rotation angle and the rotation speed of the tactile presentation knob. The tactile presentation panel is
The tactile presentation panel according to claim 1, further comprising a touch panel and functioning as a tactile presentation touch panel. The tactile presentation panel according to claim 1 or 2, further comprising a display screen processing circuit that changes the display screen displayed on the display device based on the movement amount. The display device is
The tactile presentation panel according to claim 3, which is provided separately from the tactile presentation panel. The tactile presentation panel according to claim 3, further comprising a display condition storage device that stores the content of the processing of the display screen and the relationship with the processing of the display screen based on the movement amount. The display condition storage device is
The relationship with the processing of the display screen based on the movement amount is stored as a pattern, and is stored.
The tactile presentation panel according to claim 5, wherein the display screen processing circuit operates based on the pattern. The tactile presentation panel according to claim 1, further comprising a tactile condition storage device that stores the relationship between the tactile intensity and the tactile intensity based on the movement amount and the relationship between the tactile intensity and the voltage signal waveform. The tactile condition storage device is
The relationship with the tactile intensity based on the movement amount is stored as a pattern, and
The tactile presentation panel according to claim 7, wherein the tactile intensity calculation circuit operates based on the pattern. When the movement amount of the tactile presentation knob is the rotation angle,
The pattern is
The first pattern corresponding to the rotation of the tactile presentation knob in the first direction, and
It has a second pattern corresponding to rotation in a second direction opposite to the first direction.
The first direction is a direction away from the initial position.
The second direction is a direction approaching the initial position.
The tactile presentation panel according to claim 8, which is different from the first pattern and the second pattern. The first pattern is
The tactile presentation panel according to claim 9, which is a pattern in which the tactile intensity increases as the rotation angle of the tactile presentation knob increases from the initial position. The first pattern is
The tactile presentation panel according to claim 9, wherein the degree of increase in the tactile intensity in the peripheral region of the initial position of the tactile presentation knob is larger than that in the terminal region of the operation range of the tactile presentation knob. The first pattern is
The tactile presentation panel according to claim 9, wherein the degree of increase in the tactile intensity in the peripheral region of the initial position of the tactile presentation knob is smaller than that in the terminal region of the operating range of the tactile presentation knob. The first pattern is
The tactile presentation panel according to claim 9, which is a pattern in which the tactile strength decreases as the rotation angle of the tactile presentation knob increases from the initial position. The first pattern is
9. The pattern is such that the tactile intensity increases as the rotation angle from the initial position increases up to the specified rotation angle, and the tactile intensity decreases discontinuously when the rotation angle exceeds the specified rotation angle. Described tactile presentation panel. A display screen processing circuit that changes the display screen displayed on the display device based on the movement amount is provided.
The display screen processing circuit is
The tactile presentation panel according to claim 14, wherein when the rotation angle exceeds the predetermined rotation angle, the change of the display screen is stopped. The first pattern is
The tactile presentation panel according to claim 9, wherein the tactile intensity does not change in the peripheral region of the initial position of the tactile presentation knob. The second pattern is
The tactile presentation panel according to claim 9, which is a pattern in which the tactile strength of the tactile presentation knob of the first pattern is reduced to a predetermined tactile strength. The second pattern is
The tactile presentation panel according to claim 17, which is a pattern in which the tactile strength is increased from the first tactile strength to a predetermined second tactile strength at the initial position of the tactile presentation knob. The second pattern is
The tactile presentation panel according to claim 17, which is a pattern that increases from the first tactile intensity toward a predetermined second tactile intensity as the initial position of the tactile presentation knob is approached. When the movement amount of the tactile presentation knob is the rotation speed,
The pattern is
The first pattern of the acceleration direction of the tactile presentation knob and
It has a second pattern in the stop direction of the tactile presentation knob, and has.
The tactile presentation panel according to claim 8, which is different from the first pattern and the second pattern. The first pattern is
The tactile presentation panel according to claim 20, which is a pattern in which the tactile strength decreases as the rotation speed increases from the stopped state of the tactile presentation knob. The first pattern is
The tactile presentation panel according to claim 20, which is a pattern in which the tactile intensity does not change up to a predetermined rotation speed. The first pattern is
The tactile presentation panel according to claim 20, which is a pattern in which the tactile intensity is discontinuously decreased when a predetermined rotation speed is exceeded. The tactile intensity is
The tactile presentation panel according to claim 1, which is changed by changing the maximum amplitude of a voltage signal having a plurality of frequencies. The tactile intensity is
The tactile presentation panel according to claim 1, which is changed by changing the application time of a voltage signal having a plurality of frequencies. The tactile intensity is
The tactile presentation panel according to claim 1, which is changed by changing the formation cycle of a voltage signal having a plurality of frequencies. A display screen processing circuit that changes the display screen displayed on the display device based on the movement amount is provided.
The touch panel is
It has a detection circuit for detecting that the user has touched the tactile presentation knob.
2. The second aspect of the present invention, wherein the user has a storage device for storing the current rotation information of the tactile presentation knob, the current display screen, and the display processing method of the display screen when the user is not in contact with the tactile presentation knob. Tactile presentation panel. If the user is not in contact with the tactile presentation knob,
Initialization of the current rotation information or retention of the current rotation information,
Initialization of the current display screen or retention of the current display screen,
27. The tactile presentation panel according to claim 27, wherein any of the update of the display screen according to the display processing method of the display screen is selected. The movement amount calculation circuit is
The tactile presentation panel according to claim 1, wherein the movement amount of the tactile presentation knob is output to a drive control circuit that controls the drive of the moving body. The drive control circuit is
Drive control of the moving object with reference to an operation pattern stored in the storage device associated with the rotation of the tactile presentation knob, the horizontal movement of the tactile presentation knob, and the operation of releasing the contact from the tactile presentation knob. 29. The tactile presentation panel according to claim 29. A tactile condition storage device for storing the relationship between the tactile intensity and the tactile intensity based on the movement amount and the relationship between the tactile intensity and the voltage signal waveform is provided.
The tactile condition storage device is
The relationship with the tactile intensity based on the movement amount is stored as a pattern, and
The tactile strength calculation circuit operates based on the pattern, and the tactile strength calculation circuit operates based on the pattern.
When the movement amount of the tactile presentation knob is the rotation angle,
The pattern is
The first pattern corresponding to the rotation of the tactile presentation knob in the first direction, and
It has a second pattern corresponding to rotation in a second direction opposite to the first direction.
29. The tactile presentation panel according to claim 29, which is different from the first pattern and the second pattern. The first pattern is
The tactile intensity is constant from the initial position of the tactile presentation knob to the first rotation angle, and when the first rotation angle is exceeded, the tactile intensity decreases as the rotation angle increases. Item 31. The tactile presentation panel. The first pattern is
When the second rotation angle is exceeded, the tactile intensity becomes constant, and the tactile strength becomes constant.
The tactile presentation panel according to claim 31, wherein when the third rotation angle is exceeded, the tactile intensity increases as the rotation angle increases. A display screen processing circuit that changes the display screen displayed on the display device based on the movement amount is provided.
The first pattern is
When the fourth angle of rotation is exceeded, the tactile intensity decreases discontinuously,
33. The tactile presentation panel according to claim 33, wherein the display screen processing circuit stops the change of the display screen. The second pattern is
31. The tactile presentation panel according to claim 31, which is a pattern in which the tactile strength of the tactile presentation knob of the first pattern is reduced to a predetermined tactile strength. The second pattern is
35. The tactile presentation panel according to claim 35, which is a pattern in which the tactile strength is increased from the first tactile strength to a predetermined second tactile strength at the initial position of the tactile presentation knob. The operation of the moving body by the tactile presentation knob is
29. The tactile sensation of claim 29, comprising the operations of releasing driving force, braking, shifting up gear change, shifting down gear change, forward, reverse, flap up, flap down, rotating to the right and rotating to the left with respect to the moving body. Presentation panel. The moving body is
29. The tactile presentation panel of claim 29, comprising automobiles, agricultural equipment, construction equipment, rolling stock, ships, flying objects and robots. A display screen processing circuit that changes the display screen displayed on the display device based on the movement amount is provided.
The tactile presentation panel is
A display condition storage device for storing the contents of the processing of the display screen and the relationship with the processing of the display screen based on the movement amount is provided.
The touch panel is
It has a detection circuit for detecting that the user has touched the tactile presentation knob.
The detection circuit
Detects the rotation of the tactile presentation knob, the horizontal movement of the tactile presentation knob, the release of contact of the tactile presentation knob, and the operation of pushing the tactile presentation knob.
The display screen processing circuit is
The tactile presentation panel according to claim 2, wherein the display screen is changed based on the detected operation. A display screen processing circuit that changes the display screen displayed on the display device based on the movement amount is provided.
The tactile presentation panel is
A display condition storage device for storing the contents of the processing of the display screen and the relationship with the processing of the display screen based on the movement amount is provided.
The touch panel is
It has a detection circuit for detecting that the user has touched the tactile presentation knob.
The detection circuit
The rotation of the tactile presentation knob, the horizontal movement of the tactile presentation knob, the release of the contact of the tactile presentation knob, the operation of pushing the tactile presentation knob, and the operation of reciprocating the tactile presentation knob are detected.
The display screen processing circuit is
The tactile presentation panel according to claim 2, wherein the display screen is changed based on the detected operation. The display screen processing circuit is
If the tactile presentation knob is pushed in,
The tactile presentation panel according to claim 39 or 40, which performs a process of stopping the process of the display screen based on the movement amount stored in the display condition storage device. The change of the display screen by the display screen processing circuit is
The tactile presentation panel according to claim 39 or 40, which is a fine adjustment operation of the display screen. The fine adjustment operation is
The tactile presentation panel according to claim 42, which is a frame advance operation in screen scrolling. The change of the display screen by the display screen processing circuit is
The display screen is roughly changed by rotating the tactile presentation knob.
The tactile presentation panel according to claim 39 or 40, which includes a screen scrolling operation for finely changing the display screen by an operation other than the rotation operation of the tactile presentation knob. The change of the display screen by the display screen processing circuit is
The tactile presentation panel according to claim 39 or 40, which includes an operation of scaling the display screen. The change of the display screen by the display screen processing circuit is
The tactile presentation panel according to claim 39 or 40, which is changed based on the information stored in the display condition storage device or the information sent from the outside. The change of the display screen by the display screen processing circuit is
The tactile presentation panel according to claim 39 or 40, which is changed by an operation of reciprocating the tactile presentation knob. When changing the display screen by rotating the tactile presentation knob,
The tactile presentation panel according to claim 39 or 40, wherein the rotation angle information obtained by the rotation operation is subjected to any one of initialization, holding, and a process of adding and subtracting a fine adjustment amount to the rotation angle. The presentation of the antennae to the user is
The tactile presentation panel according to claim 1, which is electrostatically presented. The presentation of the antennae to the user is
The tactile presentation panel according to claim 1, which is presented together with ultrasonic waves. The tactile presentation knob mounted on the operation surface of the tactile presentation panel according to claim 1.
A rotating shaft with a hollow structure,
A first rotating body arranged in the hollow portion of the rotating shaft, and
A second rotating body that houses the rotating shaft, and
A conductive elastic portion arranged on the side of the first rotating body facing the operation surface, and
A structure holding portion arranged on the side of the rotating shaft facing the operation surface, and
A position detection unit arranged on the side of the second rotating body facing the operation surface, and
A tactile presentation knob comprising a top plate for connecting the first rotating body and the second rotating body on the side opposite to the operation surface. The diameter of the hollow portion of the rotating shaft is
The tactile presentation knob according to claim 51, which is up to 0.5 mm larger than the diameter of the first rotating body. The tactile presentation knob mounted on the operation surface of the tactile presentation panel according to claim 1.
The axis of rotation and
The first rotating body for accommodating the rotating shaft and
A second rotating body for accommodating the first rotating body, and
A structure holding portion arranged on the side of the rotating shaft facing the operation surface, and
A conductive elastic portion arranged on the side of the second rotating body facing the operation surface, and
A top plate for connecting the first rotating body and the second rotating body on the side opposite to the operation surface is provided.
The axis of rotation is
Shaft and
A fixed base facing the operation surface via the structure holding portion,
A tactile presentation knob having an elastic member connecting the fixing base and the shaft portion. The elastic member is
The tactile presentation knob according to claim 53, which is composed of a coil spring. The elastic member is
Two or more first flat plate springs placed facing each other,
The tactile presentation knob according to claim 54, comprising two or more second flat plate springs arranged so as to face each other in a direction orthogonal to the first flat plate spring. The first rotating body is
The bottom surface on the operation surface side is
The tactile presentation knob according to claim 53, which is provided so as not to protrude from the portion of the rotating shaft forming the elastic member on the fixed base side. The tactile presentation knob mounted on the operation surface of the tactile presentation panel according to claim 1.
The first axis of rotation and
A second rotating shaft for accommodating the rotating shaft, and
A first rotating body for accommodating the second rotating shaft, and
A second rotating body for accommodating the first rotating body, a first structure holding portion arranged on the side of the first rotating shaft facing the operation surface, and a first structure holding portion.
A second structure holding portion arranged on the side of the second rotating shaft facing the operation surface, and a second structure holding portion.
A conductive elastic portion arranged on the side of the second rotating body facing the operation surface, and
A top plate for connecting the first rotating body and the second rotating body on the side opposite to the operation surface is provided.
The axis of rotation is
Shaft and
A fixed base facing the operation surface via the structure holding portion,
A tactile presentation knob having an elastic member connecting the fixing base and the shaft portion. A first shaft guide provided so as to project from the side surface of the shaft of the first rotating shaft, and a guide for the first shaft.
57. Tactile presentation knob. The tactile presentation knob mounted on the operation surface of the tactile presentation panel according to claim 1.
The axis of rotation and
The first rotating body for accommodating the rotating shaft and
A second rotating body for accommodating the first rotating body, and
A structure holding portion arranged on the side of the rotating shaft facing the operation surface, and
A conductive elastic portion arranged on the side of the second rotating body facing the operation surface, and
A top plate for connecting the first rotating body and the second rotating body on the side opposite to the operation surface is provided.
The axis of rotation is
Shaft and
It has a fixed base that faces the operation surface via the structure holding portion, and has.
Between the side surface of the shaft portion of the rotating shaft and the inner surface of the first rotating body, a rotating portion composed of the first rotating body, the second rotating body and the upper surface plate is formed on a flat surface. A tactile presentation knob with a gap that can be moved back and forth and left and right in the direction. The gap is
It has a plurality of suspensions that separate the rotating shaft from the first rotating body, and has a plurality of suspensions.
Each of the plurality of suspensions
25. Tactile sensation according to claim 59, which has an elastic member whose one end is connected to the shaft portion and a sliding portion which is connected to the other end of the elastic member and slides in contact with the inner surface of the first rotating body. Presentation knob. The gap is
It has a plurality of piezoelectric elements that separate the rotating shaft from the first rotating body, and has a plurality of piezoelectric elements.
Each of the plurality of piezoelectric elements
The tactile presentation knob according to claim 59, wherein one end is connected to the shaft portion and the other end has a sliding portion that slides in contact with the inner surface of the first rotating body. The tactile presentation knob mounted on the operation surface of the tactile presentation panel according to claim 1.
The axis of rotation and
The first rotating body for accommodating the rotating shaft and
A second rotating body for accommodating the first rotating body, and
A structure holding portion arranged on the side of the rotating shaft facing the operation surface, and
A conductive elastic portion arranged on the side of the second rotating body facing the operation surface, and
A position detection unit arranged outside the conductive elastic portion and
A top plate for connecting the first rotating body and the second rotating body on the side opposite to the operation surface is provided.
The axis of rotation is
Shaft and
It has a fixed base that faces the operation surface via the structure holding portion.
The position detection unit is formed to be thinner than the structure holding portion and the conductive elastic portion so that the bottom surface does not come into contact with the operation surface in the rotation operation and translation operation of the tactile presentation knob. .. The shaft portion of the rotating shaft has a top having an arcuate cross section.
The top plate is
The tactile presentation knob according to claim 62, wherein the portion of the shaft portion facing the top thereof forms a conical shape having an inclination with the center of rotation as the maximum height. The structure holding portion is divided into a plurality of parts and arranged at intervals from each other.
The tactile presentation knob according to any one of claims 51, 53, 57, 59 and 62, wherein the conductive elastic portion is divided into a plurality of parts and arranged at intervals from each other. The tactile presentation knob according to claim 51 or 62, wherein the position detection unit is divided into a plurality of parts and arranged at intervals from each other.

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